Description: - Multipurpose,Act as a great bike theft deterrent. Vibrationaly triggered alarm suitable for bicycle, motorcycle, electric bike, electric scooter and so on. You can also use for doors and windows alarm vibration sensors. - Super Sensitive to Motion,7 level adjustable sensitivity from gently touch to push or beat, you can easily set it according to your need. Wireless remote control operation, remote control range up to 20M/66FT. - Extremely Loud 150dB,Onvian bike security alarm can make a loud sound to draw people's attention. 150dB Loud can effectively scare thieves away, can also be used as SOS emergency alarm. - Easy Installation and Waterproof,This motorcycle bicycle burglar alarm Installation by pasting with double-sided sticker or tieing it with strap. No wiring, no screw. Water resistant rated to IP55 - Can use for outdoor. - Mini Size,3.7"*1.6"*0.8" exquisite and compact design, easy to hide and install, 6 kinds bell sound can operate by remote control, easy to find the vehicles position. Specifications: Wireless range: 10-20 meters Working environment temperature: -20~60 degree Alarm dimensions: 65mm*45mm Remote dimensions:58mm*28mm*11mm An alarm 500MA batteries standby for 6-10 months. A remote need a 12V/27A alkaline battery standby for over 1 year.