Frequently Asked Questions
MEGADRON FAQ — Questions and Answers
We’ve compiled answers to the questions we hear most often before purchase, after purchase, and during your first flights. Click a question to expand the answer.
We won’t just send you elsewhere for basic information. First, we’ll give you a specific answer, and only then will we provide a link to a more detailed guide or the relevant section of the store.
About MEGADRON
Who we are, what we offer, and why people keep coming back to MEGADRON.
What products and services does the MEGADRON store offer?
MEGADRON is primarily an online store that ships throughout Poland and the European Union. We also have a brick-and-mortar store in Gdynia and our own warehouse. Thanks to this, we’re able to ship a large portion of our orders very quickly.
DJI drones are our core focus, but we don’t limit ourselves to just one brand. We also import and test equipment from other manufacturers. Before we add a new drone to our lineup, we check to make sure it actually works as it should. We don’t just throw random junk into the store just because it’s cheap or looks good in a photo.
At MEGADRON, you’ll find, among other things:
- recreational and professional drones,
- DJInd Enterprise drones for businesses and public entities,
- ready-to-fly FPV drones,
- parts for building your own FPV drones,
- batteries, propellers, chargers, filters, and other accessories,
- action cameras and gimbals,
- underwater drones,
- power stations,
- cleaning robots,
- state-of-the-art robotic devices.
We’re not just a store. We also offer:
- drone repair services,
- equipment rentals,
- drone training,
- assistance with initial setup,
- pre-purchase consulting,
- post-purchase support,
- equipment demonstrations and implementations for businesses,
- customized services for public entities.
We have dedicated staff members who work with businesses and institutions. We also regularly train our own team, test new devices, and keep up with market trends. Because it’s not just about the equipment—it’s also about knowing how to use it effectively.
What sets the MEGADRON store apart from other drone stores?
We’re the most approachable drone experts around. We give concrete advice—no fluff and no reciting specs alone.
We’ve been in business since 2014 and were among the pioneers of the drone market in Poland. Over that time, we’ve built up experience, our own warehouse, a brick-and-mortar store, a service center, a rental shop, and a team of people who really know their drones.
Key differences:
- We don’t just sell DJI. We compare different brands and select equipment tailored to your needs.
- We test products. We don’t add random devices to our lineup that might fall apart after just a few flights.
- We have our own repair shop. We’re here to help if something stops working or your drone has a run-in with a tree.
- We have a wide selection of parts and accessories—including those that are hard to find in other Polish stores.
- We’re here to help before and after your purchase. You can call, email, or visit us in Gdynia.
- We share our knowledge. We create guides, reviews, comparisons, and videos.
- We serve beginners, businesses, and FPV enthusiasts alike.
We don’t want to sell you the most expensive drone. We want to help you choose equipment that truly meets your needs.
What additional benefits does buying a drone at MEGADRON offer?
When you buy a drone from MEGADRON, you get more than just the box.
We include a mandatory sticker with the operator’s number with your drone. For select orders, you can also choose a free gift available in your cart.
If the equipment doesn’t meet your expectations, you can take advantage of our efficient return process in accordance with the store’s terms and conditions. The equipment is also covered by an appropriate warranty.
If something goes wrong with your drone, we’ll help you file a claim or process a “DJICare Refresh.” You don’t have to figure out on your own where to send the device or who to contact.
Plus:
- you have access to a wide selection of accessories in one place,
- you’re buying proven equipment,
- you can take advantage of our service,
- you can get help setting up your device,
- you can speak with someone who knows the equipment,
- you support the growth of a Polish company specializing in drones.
Where can I find customer reviews of the MEGADRON store?
Customers value us above all for our fast delivery, practical assistance, honest advice, and efficient problem-solving.
We don’t pull the wool over your eyes. If cheaper equipment is sufficient for your needs, we’ll tell you so. If we don’t know something, we’ll look it up instead of making up an answer.
Terms like the following often come up in reviews:
- fast shipping,
- reliable service,
- helpful staff,
- good advice,
- drone enthusiasts,
- efficient problem-solving.
What’s it like to work at MEGADRON, and where can I submit my resume?
We focus on long-term relationships, growth, and gaining practical knowledge. We provide training and strive to distribute responsibilities in a way that allows people to grow in what they enjoy and what they’re good at.
We have a strong team. The founders of MEGADRON have been friends since childhood, and the company was born out of a shared interest in new technology and drones.
Learn about MEGADRON’s history, mission, and vision
Check MEGADRON’s LinkedIn profile for current job postings. If there are no active openings but you’re really interested in working with us, send your resume and a brief note about yourself to:
We can’t promise we’ll find an open position right away. But we’ll always be happy to read your message.
Is MEGADRON an authorized DJI retailer?
Yes. MEGADRON is an authorized DJI partner and one of the brand’s main partners in Europe.
We specialize in DJI drones, but we don’t limit our selection to just one manufacturer. This allows us to compare different solutions and select equipment based on your needs, not just the logo on the case.
Products and Accessories
What you’ll find in our selection, what’s included in the package, and how to choose accessories.
What drone accessories are available at MEGADRON?
We have a very wide selection of drone accessories from various manufacturers.
Among other things, you’ll find:
- batteries,
- chargers and charging hubs,
- propellers,
- propeller guards,
- ND filters and other camera filters,
- bags, backpacks, and cases,
- cables and adapters,
- mounts,
- landing pads,
- memory cards,
- controllers,
- panel antennas,
- replacement parts,
- soldering tools and components,
- parts for building FPV drones.
We strive to offer products from a variety of manufacturers. For us, the brand is less important than whether the product works well, is compatible with your equipment, and offers a reasonable price-to-quality ratio.
If you’re not sure whether a particular propeller, battery, filter, or FPV part will fit your model, please email or call us. It’s better to check before buying than to discover after delivery that two parts don’t fit together.
What’s included with the drone?
You’ll always find the exact contents of the package in the description of the specific product, usually in the “Included” section.
Don’t rely solely on the main photo. The same drone may be sold in several versions that differ in terms of, among other things:
- the number of batteries,
- the type of controller,
- an additional charger,
- a charging hub,
- a bag,
- filters,
- spare propellers.
If you’re comparing two kits and can’t tell the difference, send us the links. We’ll tell you exactly what’s included in each one.
What does the “DJIFly More Combo” include?
The Fly More Combo is an expanded kit that includes a drone and the most essential accessories.
It usually includes:
- extra batteries,
- a charging hub,
- spare propellers,
- a bag or other accessories.
With the extra batteries, you can spend much more time in the air. The set is also usually a better deal than buying all the items separately.
The exact contents of the Fly More Combo depend on the model, so always check the “Included” section on the product page.
Does MEGADRON have drones for kids?
Yes. MEGADRON isn’t just about large and expensive drones.
We offer small models designed for fun and learning to fly, starting at around 109 zł.
When choosing a drone for a child, consider:
- the child’s age,
- where they’ll be flying,
- propeller guards,
- availability of extra batteries,
- the durability of the build,
- ease of control,
- availability of replacement parts.
Small drones often fly for about 6 minutes on a single battery, so it’s worth considering an extra battery right away.
You can also tell us the child’s age and your budget. We’ll help you find a model that makes sense.
Purchases and Payments
How to order equipment, pay, and take advantage of installment plans, leasing, or discounts.
How to buy a drone at MEGADRON step by step?
You have three simple options.
Option 1: Give us a call.
Tell us what you need, what your budget is, and what you plan to use the equipment for. We’ll advise you and can place the order for you.
Option 2: Send us a message.
Email us at sklep@megadron.pl. It’s best to specify the intended use, your budget, and the models you’re considering right away.
Option 3: Place your order yourself through the website.
- Go to megadron.pl.
- Select the product you’re interested in.
- Add it to your cart.
- Select your shipping and payment methods.
- Enter your shipping information.
- Pay for your order.
- We’ll pack your order and ship it to you.
You can shop without registering or create an account. We recommend creating an account because you’ll be able to view your purchase history and accumulated loyalty points.
If you know what you want to buy, the whole process usually takes just a few minutes. If you spend more time deciding what to buy than placing the order itself, give us a call. We’ll help you out.
Does MEGADRON offer discount codes and a loyalty program?
Yes.
You can receive a discount code by subscribing to the newsletter, among other ways. After making a purchase, you can also earn loyalty points that will come in handy for future orders.
Sign up for the MEGADRON newsletter
The newsletter isn’t just about discounts. We also send out information about new releases, regulatory changes, guides, and the latest news from the world of drones.
Can I get a discount on a larger order?
Yes. For larger orders, we can offer customized terms.
This applies especially to:
- purchases of multiple devices,
- larger kits with accessories,
- corporate orders,
- purchases for public entities,
- larger implementations.
Please contact us before making a purchase and provide a list of products. We’ll see what we can offer.
Email: sklep@megadron.pl
What payment methods can I use at MEGADRON?
Depending on your order, you can use, among others:
- BLIK,
- credit/debit card payments,
- instant online payments,
- traditional bank transfer,
- payment based on a pro forma invoice,
- cash-on-delivery payments,
- 0% installment plans,
- and leasing.
In our brick-and-mortar store, you can pay by card or cash.
You’ll also see the available payment methods when placing your order.
Can I buy a drone with 0% interest installments for my business?
Yes. However, the installment plan itself must be registered under an individual’s name.
The process is 100% online. Select “installments” as your payment method, proceed to the form, and fill in the required information.
Does MEGADRON offer leasing for drones and gimbals?
Yes. We offer leasing through LeaseLink.
The entire process takes place online. You select the equipment, fill out the LeaseLink form, and provide your company information.
Leasing is available for, among other things:
- drones,
- cameras,
- gimbals,
- equipment intended for business use.
How long is the warranty on drones and other products?
Most products come with a standard 2-year warranty.
You can find the exact warranty period in the specifications on the specific product page. Not every product and not every type of customer has the same terms, so always check the information for the device you’ve selected.
If you don’t see this information or have any questions, please send us a link to the product at sklep@megadron.pl.
What is MEGADRON’s tax ID number (NIP) and registration information?
Registration details:
Sky scaff Dawid Łysik6A/1
Augustyna Necla St. 81-377 Gdynia
Poland
Tax ID (NIP): 5862255479
National Business Registry Number (REGON): 222157882
Bank: ING Bank Śląski
Primary account number: 86 1050 1764 1000 0090 3181 1970
SWIFT/BIC: INGBPLPW
Does the company have to use the split payment mechanism?
Yes. Use the split payment mechanism for business payments.
Our system does not automatically verify whether a transfer was made using the split payment mechanism. If you do not use it, you are responsible for ensuring the payment is settled correctly.
In online banking, select the “VAT transfer” or “MPP” transfer message and enter the information required by the bank.
To which account should I make the transfer for the order?
Make the transfer to the appropriate account, depending on the currency.
PLN account — ING
PL86 1050 1764 1000 0090 3181 1970
EUR account — ING
PL10 1050 1764 1000 0090 8064 8570
USD account — ING
PL05 1050 1764 1000 0090 8157 6465
CZK
account 33 1050 1764 1000 0090 8229 6477
HUF
account 88 1050 1764 1000 0090 8432 7734
SWIFT/BIC: INGBPLPW
Recipient:
Sky Scaff Dawid Łysik6A/1
Augustyna Necla St. 81-377 Gdynia
Please enter the order number in the transfer description.
After placing your order, the system automatically generates a pro forma invoice. You can make the payment using the details provided on this document.
Delivery and Product Availability
Shipping dates, pre-orders, international orders, and stock availability.
Does MEGADRON ship orders outside of Poland and the European Union?
We typically ship throughout Poland and the European Union.
Estimated delivery time:
- Poland: 1–2 business days,
- European Union: 2–6 business days.
Shipments to islands may take longer.
We can also ship orders outside the European Union. However, this depends on the country, the carrier, and the type of product ordered. Specific restrictions may apply to devices with large batteries.
To check shipping availability, email us at sklep@megadron.pl or give us a call. Please provide the destination country and a link to the product.
How can I check if a product is in stock?
You can check current availability on the specific product page.
The exact estimated shipping time is listed below the large yellow “Add to Cart” button.
If you’re ordering multiple products at once, we’ll typically ship the entire order once the last item becomes available.
Example: You order three products. We have two in stock, and the third will be available in three days. By default, we’ll ship the entire order once all three are ready.
Don’t want to wait? Contact us. We can split your order into two shipments and send the in-stock items sooner.
Is the shipping date for a pre-order accurate?
Yes. We provide a date based on current information about the product’s delivery.
The date may sometimes be pushed back by a few days, especially for new releases and initial shipments from the manufacturer. In about 95% of cases, we ship the equipment on the date listed on the website.
You’ll find the most up-to-date date under the “Add to Cart” button.
After you pay for your order, we’ll also send you an email with a summary and the estimated shipping date.
If you need the equipment for a specific trip or project, please contact us before purchasing. We’ll check the current status.
Will a package from MEGADRON arrive the next day in southern Poland?
If the product is in stock and we specify that delivery time on our website, the package should arrive the next business day.
About 95% of our domestic shipments reach the customer the very next day.
However, we do not have remote control over the courier. Delivery may be delayed by factors such as:
- the pre-holiday period,
- very high volume of shipments for courier companies,
- adverse weather conditions,
- a sorting facility malfunction,
- unforeseen events.
The most important information is the shipping date listed on the product page.
Brick-and-mortar store, testing, and initial setup
Our showroom in Gdynia offers the opportunity to view the equipment and receive assistance with setup.
Where is the MEGADRON brick-and-mortar store located?
We have one brick-and-mortar store in Gdynia:
MEGADRON5
Chwaszczyńska St. Gdynia
Before coming in for a specific product, it’s a good idea to call and make sure that the model you want is in stock.
Can I test a drone at the brick-and-mortar store?
Yes, if the model is available in-store or we have a demo unit.
You can see the equipment in person, compare controllers, test the controls, and check the image quality from the cameras. If conditions and the specific equipment allow it, we can also demonstrate a flight.
Please call before coming in for a specific model. We’ll check if we have it in stock and if we can set up a demonstration.
If you spend some time with us, we’ll make you some coffee ☕
Will you help me connect, start up, and configure the drone at the store?
Yes.
We can help with, among other things:
- initial setup,
- activating the device,
- connecting the drone to the controller,
- app installation,
- basic setup,
- checking for updates,
- setting up basic functions.
Let us know in advance if you need this kind of assistance. We’ll set aside enough time for you.
Drone Service and Rental
Diagnostics, repairs, FPV builds, and equipment rentals.
Is the MEGADRON drone service located on-site?
Yes. The service center is located at the MEGADRON brick-and-mortar store in Gdynia.
We perform some repairs on-site. Depending on the model, the type of malfunction, and the required procedure, some equipment may be sent to an external service technician or the manufacturer’s official service center.
Is the diagnosis of a damaged drone performed immediately?
Usually not.
The drone must be sent to a technician, who will inspect the device, determine the cause of the problem, and assess what parts or work will be needed.
Diagnosis usually takes a few days. The time depends on:
- the current backlog,
- the drone model,
- the type of damage,
- part availability,
- the need for additional testing.
If time is of the essence, please let us know when you drop off your equipment. We’ll see what we can do.
Does MEGADRON repair all drones?
We service all popular modelsDJI
If you have a drone from another brand or an unusual model, please contact us before shipping it. Provide the exact name of the device and describe the problem.
Email: sklep@megadron.pl
We’ll check whether we can perform the repair and whether we have access to the necessary parts.
Can MEGADRON build an FPV drone?
Yes.
We can help you select components, build an FPV drone, configure it, and test its operation.
To get started, please provide:
- your budget,
- your experience,
- flying style,
- expected video quality,
- preferred size,
- whether you already have a camera and goggles.
Different parts are chosen for freestyle, racing, cinematic FPV, or long-range flying. The more we know about your goals, the better we can select the right kit for you.
Can I rent a drone and take it abroad?
Yes.
When renting, you’ll need to pay a deposit and specify how many days you’ll need the equipment.
Before traveling abroad, please contact us and provide:
- country,
- dates,
- number of days,
- the equipment model.
We’ll confirm availability and rental terms.
DJI Care Refresh
How does the additional protection work, and when should you activate it?
What is Care Refresh DJI, and how does it work?
DJI Care Refresh is additional equipment protection that works similarly to insurance.
The standard warranty primarily covers issues resulting from product defects. DJI Care Refresh can also help if the equipment is damaged due to the operator’s fault or as a result of an accident.
If a drone, camera, or gimbal covered by Care Refresh is damaged, the device will be repaired or replaced after you pay the applicable service fee.
The fee represents a small fraction of the equipment’s value. The exact amount depends on the device and the DJI Care Refresh plan.
Once the process is complete, you’ll receive fully functional equipment that is technically and visually indistinguishable from a new device.
DJI Care Refresh must normally be activated within 48 hours of the drone’s first flight. After this time, activation may still be possible upon submission of verification materials to DJI.
When it comes to drones, DJI Care Refresh is definitely worth considering. Our observations show that about 80% of customers who buy a drone choose it. We see how many damaged devices end up in service later on. A drone can: The manufacturer’s warranty helps when the problem stems from a manufacturing or design defect. However, it does not cover every situation in which the operator makes a mistake or the equipment is accidentally damaged. DJI Care Refresh fills this gap. MEGADRON also assists with shipping the equipment after an accident. You won’t be left on your own with forms and questions about where to send the drone. DJI Care Refresh protects your drone, camera, or gimbal against many types of damage not covered by the standard warranty. Depending on the model and plan, coverage may include, among other things: The exact coverage, number of replacements, and fees vary by product. Check the description of the DJICare Refresh plan for your specific model, as terms may vary. When purchasing through Allegro, the code is sent automatically after payment is processed. The system operates 24 hours a day, 7 days a week. When purchasing through the MEGADRON website, we usually send the code within about an hour of receiving and confirming payment, during the store’s business hours. Don’t wait until the last minute to purchase Care Refresh—do so within 48 hours of activating your drone.
Flight time, camera, wind, range, zoom, and specialized applications. Flight time depends on the model, battery, and conditions. As a rough guide: Actual flight time is also affected by: The flight time specified by the manufacturer is based on results obtained under specific test conditions. Actual flight time may be shorter. You’ll find the exact stated flight time in the description of the specific product. That’s a broad question, since you can buy everything from a drone without a camera to a professional video model. The 4K designation alone does not guarantee great image quality. Two drones recording in 4K can produce completely different results. The following factors also matter: For most applications, we recommend a drone that records at least in 4K, but always check the sensor size and actual footage from the device as well. You can find camera and drone reviews on our channel: Most modern drones with GPS have a “Return to Home” feature, which automatically returns the drone to its takeoff point. Important: Check the settings before flying. After losing connection, the drone may, depending on the model and configuration: Also set an appropriate return altitude. If it’s too low, the drone may hit a tree or a building on its way back. If the drone goes missing, check the flight logs. In the flight logs, you can find the last recorded location and a timeline of events. Every drone has its limitations, but small models can surprise you with their stability. Good motors help maintain position, and the gimbal stabilizes the camera. Thanks to this, even a small drone can record smooth footage in conditions where, at first glance, it seems impossible. However, this doesn’t mean you can fly in any weather. We do not recommend flying during: Check the model’s stated wind resistance and use your own judgment. If the drone has trouble flying into the wind, turn back early. Don’t wait until the battery starts to run low. If the manufacturer does not specify that the drone is waterproof, do not fly it in the rain. Most recreational drones are not water-resistant. Moisture can damage, among other things: If it starts to rain during the flight, return and land safely. Yes. Most models have a digital zoom. Digital zoom enlarges a portion of the image but can reduce its detail. Optical zoom or a separate camera with a longer focal length are available in select, more advanced models. Such features are useful, among other things, for: If zoom capability is important to you, let us know what you want to observe and from what distance. We’ll select the right model for you. Yes. For simple mapping, you can use a suitable drone and specialized software. The drone takes a series of photos, which are then processed by software to create a map, a 3D model, or other spatial data. Popular programs include: For more advanced measurements, the following are also important: Yes. A panel antenna can be used with certain controllers. We recommend, among others, solutions from 4Hawks. This Polish company manufactures antennas designed to improve connection quality and transmission range. Installing the antenna may require specialized knowledge and modifications to the controller. MEGADRON provides this installation service. Contact us and provide the model of your equipment. We’ll check compatibility and whether we can perform the service. How 4Hawks panel antennas work Remember that greater technical range does not change the regulations governing flights. How to check battery cycles and how to care for batteries. Insert the battery into the drone, power on the device, and connect it to the controller. Then go to the battery settings in the app. Depending on the model, you’ll find information there about the battery’s status and the number of charge cycles. If you have multiple batteries: You must repeat this process separately for each battery.
Key guidelines: Do not use a damaged, swollen, or punctured battery. Does Cold Weather Damage Batteries, and How Should They Be Stored? How to choose a model and get started on your flying adventure the right way. One that meets your needs. There’s no single “best” drone for everyone. Want to fly fast and dynamically? Looking for your first classic drone with a camera? Looking for equipment for your business? Looking for a drone for a child? Want to capture the best possible footage? So we can quickly make a recommendation, please provide us with three pieces of information: First, decide what you want the drone for. Possible uses include: Next: For your first flight, don’t choose a small room, a crowded park, or an area full of trees. Apps for your phone and computer, plus a simple guide to get you started. We keep it simple. We edit most of our quick clips right on our phones. For editing videos on your phone: These are good options for Reels, short videos, and travel footage. For more professional editing on a computer: DaVinci Resolve is also available in an extensive free version. Both programs offer significantly more features but require more learning. If you’re shooting in the D-Log profile, it’s worth using software that allows for precise color correction. For photo editing: You don’t have to start with professional software. First, learn how to frame and shoot well. Editing won’t save every shot. Permits, flight notifications, altitude, and safe flying. Regulations depend on the drone’s weight, flight location, and the type of operation being performed. Key basics: Regulations are subject to change, which is why we create updates, guides, and resources to help you fly legally. Drone Regulations — MEGADRON Guide Sign up for the newsletter to receive an e-book on regulations and the basics of flying. Yes. If you fly without the required licenses or in violation of the regulations and are stopped for an inspection, you may face a fine. Issues may include, among others: Checking the zone and completing check-in takes just a moment. A fine and the loss of your drone take much longer. If you’re flying outdoors, open the appropriate app and check in before every flight. First, check whether you are in a zone where you are allowed to fly. If a given zone requires additional permission or has restrictions, follow the instructions displayed in the app. If you’re flying inside your own home or a hall, you don’t need to file a standard flight report for airspace. Yes, but be careful. A first flight in a small room is a common mistake. At home, you have limited space, many obstacles, and little room for error. You can easily damage: For your first flight, it’s best to choose a small clearing or a large, open space with no people or animals. If you’re flying indoors, consider using propeller guards. For drones weighing less than 250 g, you don’t need a standard license. However, you must register as a drone operator. For heavier drones, you’ll need the appropriate licenses. Operator registration and requirements depend on the type of device and the nature of the flight. Perform a simple preflight check before every flight. Check: During flight: Most accidents aren’t caused by drone malfunctions. They result from rushing, inattention, or the belief that “one more kilometer will be fine.” In a typical flight compliant with Polish regulations, you can ascend to a maximum of 120 meters above the nearest point on the ground. This does not depend on the drone’s maximum range. A drone can technically fly higher, but that doesn’t mean such a flight is legal. Transmission range, maximum technical ceiling, and permitted altitude are three different things. Don’t do anything illegal just because your equipment is technically capable of it.Is DJI Care Refresh worth buying, or is it just a gimmick?
What does Care RefDJI?
How soon will I receive my DJI Care Refresh code?
Drone Specifications and Performance
How long is a drone’s flight time on a single battery charge?
Which drone camera provides good image quality?
What happens if a drone loses signal?
Won’t the wind blow a small drone away?
Can I fly a drone in the rain?
Does the drone’s camera have a zoom?
Can a drone be used for mapping and photogrammetry?
Is it possible to increase a drone’s range?
Drone Batteries
How do you check the number of charge cycles on a DJI battery?
How to Care for Drone Batteries?
Choosing a Drone and Getting Started
Which drone should you buy?
Check out FPV drones. You can buy a ready-to-fly kit or build one from individual parts.
Check out the DJI Mini series. It’s a great choice for anyone who wants to record their travels, family trips, or simply start flying. Depending on the model, the drone can also automatically capture shots and track subjects.
Check out the DJI Enterprise solutions, thermal imaging drones, models for mapping and inspection, and the DJI Dock systems.
Start with a simple model with propeller guards. You don’t need to spend several thousand zlotys on equipment right away.
Focus not only on 4K resolution, but also on the sensor size, lens, and camera capabilities.
How do you get started with drones?
Video editing and photo editing
What software should you use to edit drone videos and photos?
Drone Regulations and Safety
What are the most important drone regulations?
Am I at risk for flying a drone without the required permits?
Do you have to report every drone flight?
Can I fly a drone at home?
Do I need a license to fly a drone?
How to fly a drone safely?
How high can a drone legally fly?