Multi-function alarm Effectively prevents bicycle theft. Primarily functions as a burglar alarm, it also features one-key vehicle search and SOS functionalities. Exquisite Design Innovative and compact design. Waterproof case made from PC material, IP55 waterproof rating, suitable for bicycles, cars, motorcycles, electric bicycles, self-balancing scooters, doors, and windows. Super Loud Burglar Alarm Effectively deters thieves with an alarm sound of 113 dB, adjustable volume levels of 96 dB, 105 dB, to 113 dB. Sensitivity is adjustable to 7 levels, allowing easy customization to your needs. Easy to use and install Remote control with one-key deployment for alarms, conveniently helps in locating your vehicle. The remote control range extends up to 20m. Two installation options are available: use double-sided tape or secure it with a strap.