Feature: 1. Low Battery Indicator: When the battery is below 20%, the lock's red light blinking rapidly, and the mobile app will display a low battery warning. When the battery drops below 10%, the lock will not be able to lock, so please replace the battery in a timely manner (normal usage is about 8 months). 2. Locking: Install the battery, tighten the battery cover screw, insert the key into the lock, and press the lock button. You will hear 3 beeps indicating it has locked automatically. (If the above steps are not done correctly, you will not be able to lock it.) 3. Automatic Unlocking: Select the automatic unlock mode, and no action is required on your phone. When the phone is nearby, the blue light on the lock blinking, indicating the unlocking state, when the phone moves away, it indicates the locking state. Note: You can quickly unlock and lock by enabling and disabling your phone's Bluetooth. 4. Disabling Alarm, Changing Password: When an alarm is triggered, bring the phone close to the lock while connected to disable the alarm. (Both the phone's Bluetooth and the app must be turned on.) Please remember the password you set. If you change your phone or re pair the lock, you must enter this password. If forgotten, the lock cannot be used. 5. Compatibility: By pairing your phone via Bluetooth with the Bluetooth universal lock, it enables your phone to act as a key (compatible for Android systems). Multiple phones can be paired with the app. 6. Easy to Operate: The operating is simple, as long as your phone is near the Bluetooth lock, it can be unlocked without any action on the phone. It has low power consumption. It is IP44 water resistant, with an optional vibration alarm feature. Specification: Item Type: Keyless Bluetooth Motorcycle Lock Material: ABS, Steel Wire Battery Type: AAA Battery (Battery Not Included) Battery Quantity: 3pcs Wire Specification: Diameter: 10mm / 0.4in, Length: 80cm / 31.5in Anti Cut Function: Alarm When The Steel Rope Is Cut Anti Tamper Function: Alarm When The Screws Are Disassembled Vibration Function: Alarm For 30 Seconds When Vibrating Or Moving The Lock Body Water Resistant Function: IP44 Alarm Sound: Above 110dB. Package List: 1 x Keyless Bluetooth Motorcycle Lock1 x Screwdriver1 x User Manual