<p><b>Specifications:</b></p> <p>Alarm Volume: 113dB</p> <p>Adjustable Sensitivity Level: 7</p> <p>Waterproof: IP55</p> <p>Loudspeaker Batteries: 3* 1.5V AAA (included)</p> <p>Remote Controller: 1*12V 27A (included)</p> <p>Bell Sound Types: 6</p> <p><br></p> <p><b>Package List:</b></p> <p>1 * Bicycle Vibration Alarm, 2 * Mounting Strips, 2 * Double-sided sticker, 1 * English Instruction</p> <p><br></p> <p><b>NOTE: </b></p> <p>1) The extra remote control need to pair with the host, a host can pair maximum 8pcs remote control.</p> <p>2) For extra remote control, just rearch "Mengshen AR01"</p> <p>How to pair host with the extra remote control?</p> <p>1) Press "disarm" key to disarm the alarm on the first remote control,</p> <p>2) Long press "doorbell key"(the last key)on the first remote control, when hear the sound "Bi", then press "arm" or "disarm" key on the new remote control, you will hear sound "Bi Bi", finally you could use the new remote control.</p>