Features:
The vibration alarm is suitable for bicycles, doors and windows.
 Sensitivity can be adjusted between 7 grades, tap, push or hit.
113dB loud alarm can effectively eliminate thieves
It comes with 6 bells so you can easily find your own bike
IP55 waterproof PC case makes it work normally in light rain or splash water
You can use double-sided tape to attach it to a bicycle or use a belt to install it