【Multifunctional Security Alarm】: Our multifunctional wireless anti-theft alarm has IP55 waterproof and dustproof function, which can be used outdoors; and there are 3 types of sound alarms optional, and the remote control distance is 20m / 66ft. This allows you to quickly find your bike from a distance; with 7 levels of adjustable sensitivity, from a light touch to a push or tap, you can easily set it up however you want! (One alarm clock can be paired with up to 8 remote controls) 【Remote control】: Turn on the SOS function, remote wireless control, powerful wireless range up to 66 feet, vehicle search function. In the event of a driving accident, it will automatically send out a distress call, providing you with multiple protections. It runs on 3 AA batteries and can be used daily for 6 to 10 months. 【Wireless Remote Control】: Bicycle safety alarm with wireless remote control function, powerful wireless range up to 20 meters. Vehicle search function, easy to find your vehicle in the parking lot, 3 kinds of buzzers for you to choose (arming mode is not available). 【High Quality Material】: PC shell, more sturdy, IP55 waterproof and dustproof, more suitable for outdoor use. Two installation methods: double-sided adhesive tape or knotting, which is convenient for various vehicle anti-theft installations. 【Multipurpose】: Works as a great bicycle theft deterrent. Vibration alarm for bicycles, motorcycles, electric bicycles, electric scooters, etc. It can also be used as a vibration sensor for door and window alarms.