This product is a motorcycle alarm, the working voltage is 12 V, suitable for all 12 V voltage vehicle installation and use.Product host and speaker integrated design, effectively reduce the use of volume.All operations are completed by the remote control, which is convenient to use.Installation is simple, directly connect the positive and negative poles, and fix the host.It has the function of finding cars, which is convenient for the parking lot to find cars.Vibration sensitivity is adjustable.Product parametersHost working voltage: 12VRemote control operating voltage: 3 VAlarm volume: 115 DB-120 DBOperating frequency: 315MHZ/433MHZ