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. 5 sensitivity level: Long press the remote control disarm button to adjust the corresponding sensitivity level. Suitable for more different scenes to accurately sense vibration. Remote control range up to 20M/66FT. Extremely Loud 125dB: Bike security alarm can make a loud sound to draw people's attention. 125dB Loud can effectively scare thieves away, can also be used as SOS emergency alarm. Standby time is 30 days, use time is about 15 days. 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.