Anti-thief security alarm This disc locks Built-in sensors inside Can detect vibration and movement. The 110 dB alarm system discourages potential thieves - handy for bikers when they park outside or at home. practical use this aluminum alloy disc lock, sturdy and durable, waterproof, resistant to high temperature, suitable for outdoor climatic conditions Easy to use Push the locking core to start the locking process. No key is required. 5 seconds later, beeps will sound to indicate that the alarm has been correctly activated. Use the button to deactivate the alarm. Widely used Suitable for most motorcycles, mopeds, yachts, scooters, sports motorcycles, and racing cars less than 7mm thick. Package contents 1 x alarm disc lock (included), 2 x keys, 1 x Allen key, 1 x waterproof starter cable, 1 x motorcycle locking bag Product Theft protection This disc lock with 110 dB alarm. This motorcycle lock is equipped with a sensor. The 110 dB alarm system scares potential thieves! indestructible Motorcycle locks are very robust, can withstand the impact of drills and other tools and protect your items safely. Widely used Suitable for most motorcycles, mopeds, yachts, scooters, sports motorcycles and racing cars less than 7mm thick. Package contents 1 x Alarm Disk Unit (batteries included) 2 x keys 1 x Allen key 1x waterproof additional cable 1 x motorcycle lock bag Premium and waterproof This motorcycle lock is made of aluminum alloy and waterproof material for a long service life. If your motorcycle is exposed to wind and rain outside, the motorcycle will continue to run. (It should be noted that in strong winds and rain, the motorcycle lock will trigger an alarm due to vibrations.) Battery change You can easily replace the Lr44 battery with the key provided. The battery is usually very long-lived and the frequency of battery changes is around 1 to 2 years.