UDI U818A 2.4GHz 4 CH 6 Axis Gyro RC Quadcopter 818A + UDI001 Black Venom Speed Boat (Holiday Special Combo) Special holiday combo deal! 6 AXIS GYRO with posture control - Integrated design guarantee the precise positioning of the aircraft. 4 CHANNEL function provide stable flying and easy operation. Venom Speed boat up to 45km/h Modular Design makes it easy to install and repair. Remote Distance is up to 30m.