Motorcycle Alarm Lock Waterproof Disc Brake PadlockMain Features:Using the alarm system: Simply press the button on the top of the motorcycle alarm panel lock and you will hear a beep indicating that the lock is in alarm and your motorcycle is safely locked; if enough vibration is detected, the anti-theft alarm will sound a loud sound to warn the thief. Motorcycle AlarmExtremely powerful anti-theft function - keep the anti-theft disc lock to keep your electric bike or motorcycle safe from theft. When any vibration or impact is sensed, the 130dB alarm will automatically activate and sound loud enough to prevent theft. The 130dB sound alarm system can have a good deterrent effect on potential thieves, and the loud volume can prevent thieves from committing crimes.Easy to operate - just press once to lock, no key required. When the lock cylinder is pressed, the lock will emit a beep to indicate that the alarm device has been activated. When the bicycle disc lock vibrates, it will emit three beeps, and then it will continue to vibrate and start continuously. The sound is to scare away thieves who want to steal.Wide range of applications - Suitable for most motorcycles and bicycles with disc brakes, brake discs less than 7mm thick and cross-drilled. Ideal active safety equipment for the most popular models.Strong and durable - Our motorcycle locks are made of aluminum alloy, with excellent quality and durability. Waterproof, high temperature resistant, sealed against moisture, dust and dirt, suitable for outdoor weather conditions.Sensor design - The excellent sensor design enables it to perfectly sense the received vibration and emit a loud sound to scare away thieves.