3-Level Volume: Anti-theft bike alarm once triggered, a loud alarm up to 110dB, effectively scare away potential thieves, 3-level adjustable volume, don't worry about the alarm being too loud or too low 7-Level Sensitivity: Every vibration, movement and tilt can be easily detected, accurate identification of theft and reduction of false alarms. 7-Level Sensitivity Adjustable to touch, press or gently knock, easy to adjust according to your needs USB Type-C Rechargeable: Electric bike alarm is powered by built-in 3.7V 700mAh rechargeable lithium battery, fully charged can work for about 3 months. With a powerful wireless range up to 70m/220ft, vehicle search function to easily find your vehicle in the parking lot Easy to install: Motorcycle anti-theft cable ties and double-sided tape are three installation methods without wiring. The bracket is stable and easy to adjust the installation position. Cable ties and double-sided tape installation are suitable for irregular installation objects