â?¦ Name : AIR COPTER Aduinodron Kit ( Gear Type Basic Set ) â?¦ Manufacturing : ORECOOP body â?¦ motor : 820 motor ( constant x 2 gae , station x 2 gae ) â?¦ Length : Approx . 22.5cm ( excluding diagonal wing ) â?¦ Wing length : approx. ) 13.5cm â?¦ Total length including wings : approx. ) 36cm Control board â?¦ Size : 45mm x 45mm â?¦ Axis : 4 axes â?¦ Processor: ATmega32u4 (Arduino Pro Micro) â?¦ Sensor : MPU6050 (GY-521) â?¦ Communication method : Bluetooth 4.0 ( not included ) â?¦ OnOff switch â?¦ A, B type assembly method