Product keywords
Please enter the email address account
021 Mini DIY Building Block RC Quadcopter - RTF
Share to:

021 Mini DIY Building Block RC Quadcopter - RTF

- Red 210886101

2.4GHz 4CH 6-axis Gyro
17.16 $19.41 Discount : 12% OFF
    COD This product supports COD on delivery. Suggestions: Do not place orders with non-COD products, otherwise you will not be able to choose COD payment method.
    Ship between: Mar 27 - Mar 29, Estimated Shipping Time: business days Order Processing Time may require a few days. Once dispatched from warehouse, Shipping (or Delivery) Time depends on the Shipping Method.
  • +
  • interest-free You can enjoy a maximum of 0 interest-free installments, and may not enjoy this offer when placing orders with other products
Tax Info Price Protection Price Disclaimer Repair Warranty Report item

Recommended Products for You

Customers Who Bought This Item Also Bought

Main Features:
- Built-in 6-axis gyroscope ensures stable flight of the quadcopter
- 2.4GHz 4-channel transmitter, 40 - 50m control distance
- No soldering, easy to connect the motor to the flight controller

Power supply: 3.7V 350mAh li-ion battery ( not included )
Battery connector: 51005
Estimated flight time: 4 - 5 minutes



Type: Indoor,Quadcopter
Model: 021
Features: Brushed Version,No camera,Radio Control
Motor Type: Brushed Motor
Functions: Forward/backward,Sideward flight,Turn left/right,Up/down
Size: Small
Built-in Gyro: 6 Axis Gyro
Material: ABS/PS,PC
Level: Beginner Level


Remote Control: 2.4GHz Wireless Remote Control
Channel: 4-Channels
Mode: Mode 2 (Left Hand Throttle)
Radio Mode: Mode 2 (Left-hand Throttle)
Detailed Control Distance: 40~50m
Compatible with Additional Gimbal: No
Transmitter Power: 3 x AAA battery(not included)


Battery: no battery included


Camera Pixels: 0

Dimension and Weight

Product weight: 0.0490 kg
Package weight: 0.2800 kg
Product size (L x W x H): 15.00 x 15.00 x 3.50 cm / 5.91 x 5.91 x 1.38 inches
Package size (L x W x H): 20.00 x 14.50 x 6.20 cm / 7.87 x 5.71 x 2.44 inches

Package Contents

Package Contents: 1 x Drone DIY Kit, 1 x Transmitter, 1 x USB Cable, 1 x English Manual

021 Mini DIY Building Block RC Drone RTF 2.4GHz 4CH 6-axis Gyro- Red

021 Mini DIY Building Block RC Drone RTF 2.4GHz 4CH 6-axis Gyro- Red

021 Mini DIY Building Block RC Drone RTF 2.4GHz 4CH 6-axis Gyro- Red

Product Safety Disclaimer:
We do not accept any responsibility or liability for misuse of this or any other product. All our products are extensively tested to comply with rigorous and strict QC standards. For certain products (e.g. toys, knives, etc.), we recommend proper supervision as we cannot be held liable for misuse or accidents.

Product photography is for illustration only. The product sold may have minor physical differences depending on manufacturer specifications, production batch, etc. Customers should carefully consider this before purchase.

Small Parts Disclaimer:
These toys contain small parts, not for children under 3 years in case of swallowing or choking . We do not accept any responsibility or liability for misuse of this or any other product.

Guess you like

Customer Reviews

4.63 out of 5
  • 13
  • 5
  • 1
  • 0
  • 0
See all 19 reviews Write a Review
  • Andy
    Yes (0) Color: Red
    Fun little quad
    Great fun little quad, nice instructions showing six different builds and plenty of blocks to design your own if you like. compatible with well known brand blocks. Instructions are clear enough that my 9yr old built it up. More than once after crashing it!!
    None yet

    Mar 07,2018

  • Eric
    Yes (1) Color: Red
    Blocks Drone
    You can use your imagination to fabric drones
    You can add lego blocks ,they fit perfectly
    Motors are easy to put all you have to do is plug them ...
    You get a charger but no battery

    Sep 09,2017

  • Fab
    Yes (0) Color: Red
    Nice DIY quadcopter
    I was pleasantly surprised by the performance of this little drone.
    It is easy to build (about 10 minutes)
    Motors are plug and play (easy to replace)
    this drone is easy to control and fun to fly
    no battery included

    Nov 07,2017

  • Tamás G.
    Yes (0) Color: Red
    Lego quadcopter
    Excelent fun, good learning for kids of how quadcopters work.
    At the motors the plastic broke easily. Very hard to manovering.

    Nov 25,2017

  • John
    Yes (1) Color: Red
    Really fun project
    Really a neat kit - built with my 8 y/o. 6 different configurations to try. Looks to be about a 0720 motor which is plenty powerful.
    documentation is somewhat lacking. I put the motors on the wrong sides which caused the drone to spin in place. Once swapped it works fine!
    Wish it included a battery and a way to secure it.

    Dec 29,2017

  • Albert
    Yes (1) Color: Red
    Very nice game
    Can be assembled in many different ways - kids love it. Flies good on the second speed.
    The remote control is totally basic although it does the job. The drone does not perform stunts.

    Feb 28,2018

  • Mikrosilver
    Yes (0) Color: Red
    Diy block drone
    It's only a toy but I am very satisfied with the product, the quality is excellent and the price very low.
    I did not find negative points in the product.

    May 20,2017

  • Steve Green
    Yes (3) Color: Red
    Good, but no battery
    The bricks snap together very tightly which makes the quad-copter sturdy enough.
    Easy to set up.
    No flight battery included

    Sep 11,2017

  • Robert
    Yes (0) Color: Red
    LEGO compatible quadcopter
    LEGO compatible
    No battery, motor-holders are too hard plastic, cracks soon and have to glue them. Hard to build it if you don't know which propellers and motors are where to build. Fall and you have to build it every time. Hard to control it. Came with 1 propeller broken. I don't like it. Better to buy a Furibee ;)

    Mar 05,2018

  • Davide
    Yes (0) Color: Red
    does not matter if it crash (but made attention with propellers)
    good for beginners like me
    without altitude hold
    no fpv camera
    propellers are little but can be dangerous

    Nov 13,2017

FAQ for 021 Mini DIY Building Block RC Quadcopter - RTF

  • Why does one of the blades not spin?

    1. Check the tightness of the blades;

    2. Remove the blade that does not spin to see if the motor is working properly;

    3. If the motor does not work, check whether the motor gear is connected properly;

    4. Remove the body shell, check if the motor cable is connected to the mainboard appropriately.

  • How to bind the quadcopter and the transmitter?

    First turn on the quadcopter power switch, place it in a horizontal position, then turn on the transmitter. Push the left throttle lever to the highest position, and then pull it back to the lowest position. You will hear a clear "di, di" sound and the indicator light will stop flashing and just stay lit, meaning the frequency adjustment is completed and your quadcopter is ready to take off.
  • Why the indicator light of the quadcopter is flashing?

    1. The quadcopter is not binding to the transmitter correctly, please refer to the user manual to re-modulate the frequency;

    2. Battery power is insufficient, recharge the battery.

  • Why one of the blades spin slower than others?

    1. Check the tightness of the blades ;

    2. Adjust the trim key ;

    3. Re-modulate the frequency, the quadcopter must be put on a flat ground;

    4. Re-calibrate gyroscope.

  • How to distinguish the steering of a blade?

    Blades are usually marked with A, B or R. Diagonal direction blades have the same steering, adjacent blades have opposite steering.
  • How to judge the steering of a motor?

    1. Usually, motor with red and blue wires is usually a forward motor, while the reversed motor presents black and white wires. Diagonal direction motors have the same steering, adjacent motors have opposite steering.

    2. On the motor surface sometimes you can find CW or CCW. CW stands for forward motor, while CCW refers to reversed motor.

  • Why the transmitter has no reaction when operated?

    1. Check and make sure that the batteries are installed by the right polarity;

    2. Battery power is insufficient, please full charge the battery, or replace with a full charge battery.

  • Why the voltage of single battery cell is lower?

    Single battery cell voltage imbalance is a normal phenomenon. Large current discharge will usually lead to voltage difference. This may be caused by poor contact between battery and charger, and the customer should adopt balance charge mode to charge the battery.
  • Why even though all blades spin, the quadcopter still cannot flip / rotate / take off?

    1. Battery power is insufficient, recharge the battery;

    2. Check whether the blades are installed correctly.

    More details: The Quadcopter FAQs - blades, motor, transmitter

  • Can this item be shipped to my country?

    We can deliver orders to most countries. For a detailed explanation of each shipping method, destination and approximate delivery time, please check our website:

    GearBest shipping methods

    20 things you need to know when shopping on GearBest

    Short guide on tracking fees and shipping insurance on GearBest

    GearBest shipping memo: save money on delivery by choosing the best option

  • How to catch the best price on GearBest?

  • How to choose a drone's memory card?

  • How to make aircraft aerial photography?

  • View more

Customer Questions & Answers

  • All(2)
  • Product Information(1)
  • Stock Status
  • Payment
  • About Shipping
  • Others

Hi, Is this product LEGO compatible?

By Ivo May-10/2018 15:40:01


Hello Ivo,

We are sorry that it is not compatible with LEGO.


What battery we need to buy?

By Forradellas Fantini May-04/2018 17:29:56


Hello Forradellas, 
Thanks for your inquiry.

Air-to-air interface lithium battery.


Hi, Is this product LEGO compatible?

By Ivo May-10/2018 15:40:01


Hello Ivo,

We are sorry that it is not compatible with LEGO.

Be the FIRST to Ask a Question. Want GB Points? Just Write a Review!

Be the FIRST to Ask a Question. Want GB Points? Just Write a Review!

Be the FIRST to Ask a Question. Want GB Points? Just Write a Review!

Be the FIRST to Ask a Question. Want GB Points? Just Write a Review!

2 Questions & Answers View all>

Sponsored Products Related to This Item

Your Recently Viewed Items

See personalized recommendations

New customer? Start here