USB Rechargeable Anti Theft Bike Alarm Vibration Trigger Alarm with Remote Control 110dB Horn Wireless Alarm Product name: Bicycle anti-theft alarm Multifunction: Anti-theft alarm + speaker Material: plastic / resin Decibel: 110db Control method: wireless remote control, remote control distance 50-80m (recommended 10-20m, try to avoid metal shield interference) Sensitivity: 5 levels of sensitivity adjustment Application: bicycles, electric vehicles, motorcycles, doors and windows, drawers, cabinets, etc. Working principle: vibration alarm Fixed: Come with double-sided tape, tape Host charging method: USB charging Host charging time: 2-3 hours Host standby time: about 30 days (depending on the frequency of use) Remote control: built-in 2016 button battery Working environment temperature: -10-50 ℃ Working environment humidity: less than 90% Storage temperature: -20-60 ℃