This product contains a common automotive horn housed with rechargeable battery and motion sensor with a wired handlebar switch/button and two remotes.
Self-contained 7.4 volt system at 780mAh (2x3.7 volt cells at 1560mAh each).
Emits an automotive style horn (12 volt 1.5 amp, low frequency, deep, loud) with motion detecting tamper alarm (car alarm function).