Lock & Unlock This smart electronic lock can be locked and unlocked by password or remote control. Very practical without any key. The remote can control multiple locks or similar remote alarms at the same time. The lock can learn up to eight remote controls. Temporary alarm: The electronic lock alarm is very sensitive, and an alarm can be triggered immediately when the lock is moved or moved. When the wire rope is cut or the locking screw is removed, an alarm will immediately sound.If you enter the wrong password three times, the alarm will be activated and the alarm sound will reach 115 decibels or more. IP55 waterproof and dustproof: IP55 waterproof and dustproof, suitable for indoor and outdoor use. It can be used normally in a temperature range of -10 to 60 C. With this lock, no matter the bad weather outside, it can protect your bike or motorcycle safely and never be stolen. Four-digit password this product supports four-digit password combination, password combination up to 256 groups, the operation is very simple, very convenient, you need to remember after have set the password, otherwise the lock will automatically open the alarm after entering the wrong password three times.