The 12V universal alarm is suitable for all vehicles with 12V voltage. It can be connected to the power supply, and the installation is simple and convenient. You can also provide your own 12V power supply for anti-theft alarm applications such as doors, windows, warehouse doors, etc. REMOTE CONTROL MOTOCYCLE ALARM SYSTEM 1.ARM 2.Disarm 3.Sensitivity Adjustment 4.Search Vehicle 5.Six audio sound 6.5 class remote sensitivity adjustment 7.Low power consumption,battert life not in any way affect Technical Data: Alarm host: Working Vlotage:12V3V Alarm loudness:115dB-120dB Static current:5mA Working temperature:-20~+85 Main frame size:80*73*40mm Remote control: Working frequency:315MHZ Working Vlotage:3V If you need to adjust the sensitivity: Keep pressing the bell button on the remote control and dont let go. After a few seconds, the speaker will sound, and it will automatically enter the sensitivity adjustment. Now you can let go. One sound of the horn is the first gear, two consecutive sounds are the second gear, and so on, the first gear is the least sensitive. Press the button again to determine the desired gear.