1. Easy to operate: The electric bicycle anti-theft device is equipped with 2 remote control keys to open and close the vehicle, allowing you to start it with one button without having to operate it through the car key. 2. Reminder function: When you forget where you parked, short press the remote control and it will beep 15 times to remind you of the location. Sensitivity and other parameters can be adjusted. 3. Anti-theft: When the electric bicycle is pushed in the alarm state, the alarm will beep 5 times. If it is pushed again, it will beep 15 times, which has a good anti-theft effect. 4. Release key: You only need to short-press the release when the alarm beeps or in the electric start state to turn off the power, which is convenient for you to use. 5. Adjustable sensitivity: Long press the button, the alarm will beep 15 times to represent the sensitivity level. The higher the level, the more sensitive it is. Release the button at the desired level.