FullSpeed Lucky Box Beeper Buzzer 90dB 5V Built-in Battery for RC Drone FPV Racing Yokomo What can I do if

What can I do if I have this problem

Flying time: about 20mins

if you need us in a lower declare value

- Supports refresh rates up to 621Hz throttle signal

8G 5DB antenna

FullSpeed Lucky Box Beeper Buzzer 90dB 5V Built-in Battery for RC Drone FPV Racing Yokomo What can I do ifFullSpeed Lucky Box Beeper Buzzer 90dB 5V Built in Battery for RC Drone FPV Racing Specification: Brand name: FullSpeed Item name: Lucky Box Beeper Input Voltage: 5V dB: 90dB Weight: 2. 3g Size: 15. 5x13. 5x10. 5mm Features: A Working Buzzer after Battery Ejection Lucky Box Beeper is designed with a built in battery that gives it the power to sound an alarm even after the quad battery was disconnected. Lucky Box Beeper charges itself simply by being