General description Your bike's safety is enhanced with our advanced Bicycle Alarm System. It features a high-decibel alarm that wirelessly communicates with a remote control, providing robust anti-theft functionality. This user-friendly and versatile alarm system is compact and can also be used for other vehicles, offering broad-spectrum security. Technical specifications Host built-in battery: 3.7V 700mAh lithium battery Daily use lasts 1-3 months Continuous standby lasts about 6 months Charging interface: Standard USB-C 5V (some fast charging heads are not compatible) Remote control battery: WL03C: 1 27A (12V) alkaline battery for daily use for 1-2 years (counting 5 remote controls per day) Waterproof rating: IP65 (waterproof and dustproof) Transmission and reception frequency: 433.92MHz Working environment temperature: -40~+70 °C Working environment humidity: Less than 80% Storage environment temperature: -40~+70 °C Material: PC Color: Black Other information Package Contents: 1 x