URUAV UR8 5V Duo Buzzer 31x13mm Over 110dB BB Alarm 3 Working Modes w/ Battery & LED for RC Drone FPV Racing

URUAV UR8 5V Duo Buzzer Over 110dB BB Alarm Built in BatteryLED for RC Drone FPV Racing Specification Brand Name URUAVModel UR8Item Name 5V 110dB Duo Buzzer Built in BatteryLED LightWorking Time about 3 HoursVolume 110dB Battery 100mAh LipoWorking Voltage 5VSize 31x13x14mmWeight 6gFeatures Having 3 working modes 1 Compaitble with BF CF flight controller like normal buzzer such as F3 F4 F7 Flight Controller Just need connect it to flight controllers buzzer port then it can work well While you build fc well on quad and power to quad the fc 5V would charge to this buzzer automatically Red LED points at in charging 2 Can power itself to beep even the quads battery has been ejected About 30 sencond later it will beep in 110DB and LED would be light in white 3 Using PWM Receiver Signal 1000us 2000us to make it beep or disarm it Over 1700US open Buzzer and make it beep Lower to 1650US disarm buzzer Compatible with Airplane etc Disarm the BuzzerDisconnect main battery hold disarm button on buzzer for 2 seconds then release Package Included 1x Buzzer1x 4P Cable