1/3PCS Smart Alarm Lock Anti-Theft Chain For Bike Gate APP Wireless Remote Control Blue Electric Door Spiral Four-digitDescription:Feature: Lock & Unlock Mode:This smart digital lock could be locked and unlocked by password or distant control. It is awfully convenient with none key. handheld remote control can management locks or same remote alarms on the identical time. The lock can be taught as much as eight distant controls. Timely Alarm:The digital lock's alarm is awfully sensitive, and an alarm could be triggered straight when the lock is moved or moved. When the twine rope is cut off or the locking screw is removed, an alarm may be issued immediately. If you enter the incorrect password three times, the alarm can be activated and the alarm sound will reach 115 decibels or more. IP55 Waterproof & Dustproof:IP55 waterproof and dust-proof grade, compatible for indoor and open air use. It can be utilized normally in the temperature fluctuate of - 10 +60℃.With this lock, whatever how dangerous the weather is outside, it should your bike or motorbike safely and never be stolen. Four-digit Password:This product supports four-digit password combination, password combination of as much as 256 groups, the operation is awfully simple, very convenient, you must remember after setting the password, in any other case the lock will mechanically open the alarm after coming into the wrong password three times. Satisfiction Services:We solemnly promise you that if you discover issues of the product itself, you can contact us in time. we are able to certainly provide you with a respond within the first place and go back it for you. please feel free to apply it. Specifications:Lock body strength supply: 3 AAA No. 7 batteries (Not Included) Remote management power supply: 1 "CR2032" battery (Not Included) Lock main battery life: standby mode, about 5 months or extra Remote control battery life: standby mode, about 3-5 years Remote management distance: greater than 40 meters Cable specification: diameter 10 mm, length eighty cm (optional forty cm/1.2 m) Specification of metallic chain: 6mm in diameter and 80cm in length (40cm/1m optional) Operating temperature: - 10 ~60℃ Storage Temperature: -20 ~+80℃ Size: 9.2*5.5*3.4cm/3.6*2.2*1.3in Package Weight: 300g/10.6ozPackage Included:1X Lock (Batteries Not Included) 1X Remote Control (Batteries Not Included) 1X User Manual