FullSpeed Lucky Box Beeper Buzzer 5V Built-in Battery for RC FPV Racing Drone Multicopter Models Airplane Helicopter

Specification:
Brand name: FullSpeed
Item name: Lucky Box Beeper
Input Voltage: 5V
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 plugged in.

- Adapt to Any Flight Controllers
Lucky Box Beeper is programed to be compatible with any model flight controllers. Just connect it to Flight Controller and fly it.

Package Included:
1 or 2 or 4x FullSpeed Lucky Box Beeper