ITEM NAME:Car ATV Motorcycle Truck Bicycle Loud Horn klaxon 125db 12V Electric UniversalME Description: Features: Remote control can learn and clear,not afraid to lose. Million group using code,security,ultra-long-distance remote control Remote control yo adjust 4 Vibration sensitivity,easy to use Built-in high sensitivit Vibration Sensors,with user friendly software design Working voltage: DC 12V Static Current: 3.5 mA Alarm volume: about 125 db Remote distance: MAX80 meters in the open air Remote frequency: 315MHz Instruction: 1.Lock key: to set guard against theft, after three seconds, the host will alarm by vibration 2.Unlock key: lift the security Size:show as pictures Package Included: 1 x Host 1 x Alarm 2 x Remote 1x battery 1 x User Manual Note: 1.this alarm doesn\'t have start function,so the other two keys,the lightning key and the bell key can not work,thanks for understanding. 2.Connected to the motorcycle battery -12V, red - positive, black - negative 3. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 4. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard..Lock key: to set guard against theft, after three seconds, the host will alarm by vibration. Unlock key: lift the security. Remote frequency: 315MHz. 2 x Remote. Connected to the motorcycle battery -12V, red - positive, black - negative.