1、Multifunctional Bicycle Alarm: Bicycle alarm has excellent anti theft function. The vibration trigger alarm is very suitable for bicycles, motorcycles, electric bicycles, electric scooters, etc. You can also install a vibration alarm for your door or window, which will trigger the alarm when someone tries to open it. 2、Level 7 Adjustable Sensitivity: Control the alarm sensitivity of vibration sensor through level 7 adjustment. This allows you to configure bicycle alarms at will. 3、3 Adjustable Volume and Waterproof IP55: Motorcycle and bicycle anti theft alarm has a loud alarm of up to 113db, which can effectively scare away potential thieves and attract people's attention. It also has a three level volume adjustment function, so you don't have to worry about the volume being too loud or not loud at all. Waterproof IP55, very suitable for outdoor use. 4、Wireless Remote Control: The wireless bicycle safety alarm control is carried out through the remote control, and the powerful wireless range can reach 20m / 66ft. With the vehicle search function, you can easily find your vehicle in the parking lot. There are three kinds of bells for you to choose from (arm mode is not available). 5、Easy Installation: The bicycle vibration alarm has adhesive and double sided handle, which can be installed by gluing or binding. No screws or wiring required. 7x 6x0. 9inch, exquisite and compact design, easy to hide and install.