【2 Ways to Lock & Unlock】This lock cable can be locked/unlock via remote control or password, no keys required. Remote control distance up to 40 meters. 4-digit password, password combination up to 256 groups.【Anti-theft Bike Alarm】Not only works as a bike lock, but also a burglar alarm. Alarm will go off if move or vibration is detected. Alarm will also be triggered if someone try to cut lock or disassemble lock. 115dB Loud Alarm will be a great deterrence.【IP55 Waterproof】It is suitable for indoor and outdoor use. No need to worry that the bike lock chain being rusted and corroded by the rain. Quality material make sure it can work properly in the temperature range of -10℃～+60℃(14℉～140℉)【Low Battery Indication】Cable lock is powered by 3AAA batteries. LED of lock flash every 1s if it is in low battery condition, there will also be "Du Du" sound when lock or unlock. We need to replace for remote if LED of remote will is dark or remote distance get short.【Wide Use】This bicycle alarm lock can also be used for protecting motorcycle, tool box, skateboard, sports equipment, gate, fence, baby stroller, scooter and other valuables. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.