Product details of 110db Steel Security Anti-Theft Siren Alarm Lock Motor for Home, Bike, Shop, Garage Padlock with Smart Motion Sensor (Black)<ul><li>Low power consumption.</li><li>Can be used on door, window, bicycle, container, motor bike, tricycle, pull gate, garden, etc.</li><li>Corrosion resistant, waterproof and durable to use.</li><li>Powered by six button batteries.</li><li>Supplied with three keys, convenient to use.</li></ul>