Specification: Powered by 9V battery, low power consumption With on/off switch. Move the switch to ON position, press the red button of the remote to enter warning state and the grey button to non-working state Built-in vibration sensor. The alarm will sound if it is shocked, moved or vibrated by somebody tampering with it or your motorcycle Scare the potential thieves away Great for scooters, motorcycles or cars Also ideal for windows, doors, filing cabinets, safety boxes, indoor and outdoor use, etc Come with remote control and keychain for easy control Easy to use, no external power needed Working voltage: 9V (battery not included) Siren: 120dB With strong magnet, it can be stuck or attached to the motorcycle or other metal objects Package Included: 1 X Motorcycle alarm (9V battery, not included) 1 X Remote (use 12V/23A battery, not included) Note: After the alarm rings for 20 seconds, it stops, and every time it vibrates, it rings for 20 seconds and then stops. Batteries NOT included Pls remove the battery if you do not use it for a long time. Please allow 1-10mm difference due to manual measurement. Due to light and screen difference, the item's color may be slightly different from the pictures.