Smart Bike Bluetooth Lock with 105dB Alarm - APP Controlled Anti-Theft Bicycle Security Device for Outdoor Cycling & Commuting (Blue)

Description:This smart lock can keep your bike secure with easy operation, you don't have to worry about losing the key of your bike, just unlock it with with phone.Material: ABS Plastic & CopperColor Options: Red; Black; BlueCable Length: 80 cm / 31.49inchCable Diameter: 1 cm / 0.39inchWeight: approx 311 gPower Supply: 3 x AAA BatteryPackage Included:1 x Lock OnlyNoted:1. Three AAA batteries, assuming two times of usage in each day, can lasts for about 8 month.2. When the power is beyond 20%, the red light flashes to remind you of timely charging; beyond 10%, the the lock can't work.3. Put batteries in, screw the battery cover, plug in the cable and push the lock bottom, the lock is locked after it beeps for 3 times.4. Download the APP, push the lock button, turn your bluetooth on and search the device, enter your password, and start to set necessary functions.5. Two unlocking modes, automatic and manual. The former means you just need put smartphone near to the lock, when blue light flashes, and the lock automatically unlocks; when the phone is far from the lock, the lock automatically locks. The later means you need to turn on bluetooth and app for unlocking everytime.6. Once alarm triggered, the cellphone needs to be near to the controlling area with bluetooth and app on for terminating the alarm.7. Please remember your code, once cellphone changed, the lock and new cellphone need a match, if you forget the code, the lock can't be used anymore.