Once your bike/ninebot scooter is moved or shaked, the vibration alarm will chirp with 113db , enough to frighten and deter thieves. Easy and simple to set up with the Multi variable multi purpose remote controller,no wiring, no screw.It can also be used as a home door and window vibration sensors alarm to prevent thieves from invading and prying. You can also be used as a bird, squirrel and other animal repeller. Scare them away from the feeders. Specifications: An alarm need 3 AAA alkaline batteries (included ) standby for 6-10 months. A remote need a 12V/27A alkaline battery ( included ) standby for over 1 year. Wireless range: 10-20 meters Working environment temperature: -20~60 degree Alarm dimensions: 95mm*42*mm*21mm Remote dimensions:58mm*28mm*11mm Features: Arming and disarming Adjusting touch sensitivity Changing the electrical bell sound Searching vehicle SOS functions Battery low indicate siren remote alarm motorcycle lock motorcycle alarm system anti theft alarma para moto bike lock with alarm motorcycle security dirt bike stickers alarma para bicicletas bike security bike alarms for bicycles car alarm siren catalytic converter anti theft device vibration alarm alarma para carros tripwire alarm trip alarm