Vifly Finder, a working FPV drone buzzer for racing drone even after the main battery was ejected. It helps the racer to find the lost drone after crashed. Unlike standard buzzer which depends on the original battery battery in the drone, the Vifly Finder comes with built-in battery that gives power to alarm soundly after the quad battery was disconnected.

The buzzer can be compatible with any racing drones and flight controllers.

Here is the tutorial video about install the Vifly Finder buzzer to the Vifly X150 FPV mini quadcopter.