This bike alarm come with mounting bracket, adjustable ring size, more stably securely mount on your bike, no drop probability, and easy to change the installation positionDeterring thieves effectively up to 113 dB loud alarm, 3 lever adjustable volume, dont worry about the alarm is extremely loud or not loud7 level adjustable sensitivity from gently touch to push or beat. IP55 waterproof, suitable for outdoor useVehicle search function, easy to find your vehicles in parking lot, 3 kinds of bells for your choice, wireless control by remote, strong wireless range up to 66ftVibration triggered alarm suitable for Bikes, Electric Bike, Motorcycles, Scooter, Car, Trailer, Luggage, Doors and Windows. Also can be remote control noise maker to scare away animals...