Features: Main Material: Made of sturdy metal, it is waterproof, cut resistant, and high temperature resistant, suitable for outdoor conditions. High Decibel: Powerful alarm sound, the lock is equipped with a sensitive alarm device, which can be triggered by slight vibration. Rainproof And Waterproof: After being sealed and processed, the immersion lock can be used normally after 24 hours, and it will not be affected in rainy days. Internally Milled Teeth Key: Beautiful and wear-resistant, the number of key teeth changes is complex, reducing the mutual opening rate and resisting thieves. Wide Applications: Suitable for most motorcycles, scooters, motorbike, sportbike, racing bike, etc. Specifications: Type: Disc Brake Alarm Lock Material: Aluminum Alloy Color: Black, Red Size(L*W): About 77x72mm/3.03x2.83inch Powered By: 6pcs x Button Battery(included) How To Work: 1.to set the alarm mode No. press the key barrel 2.you will hear the beep sound to indicate that the alarm is On 3.then there will be a second longer beep after 3 seconds,to indicate the alarm is now armed 4.upon forced tampering, the disc lock will first emit a warming sound 5.if tampering persist, the lock will activate its 110db thunderclap alarm for 10 seconds 6.to disarm, simply unlock the disc lick 7.to turn off the alarm, press the key barrel twice within 3 seconds 8.you will hear beepbeep sound to indicate that the alarm is off How To Replace The Battery: 1. Use the delivery screwdriver to unscrew the screw in the lock slot 2. Remove the bottom cover and open the battery compartment cover 3. Replace the battery Package Included: 1pc x Disc Brake Alarm Lock 2pcs x Key 1pc x Hexagon Wrench Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.