LED can show the flight control lock / unlock, left and right aileron, brakes, throttle, alarm.
5V active buzzer, after connecting flight control can be used to trigger a remote control switch, easy to find the aircraft.
5050 RGB full color WS2812B LED * 8 pcs
5V active Buzzer
Voltage: 5V (4 ~ 7V)
Size: 49 * 15mm