Enhanced security and visibility: Equip your bike with our bike alarm, which can deter thieves with its loud 115dB alarm. Brake sensing technology ensures that the light brightens when you , alerting drivers and pedestrians behind you Waterproof and : Designed to withstand adverse weather conditions, this rugged alarm is completely waterproof, ensuring it works rain or shine Remote control operation: The convenient remote control allows you to remotely set and disarm the alarm, improving the user experience and bringing more convenience Versatile: This alarm is suitable for bicycles and motorcycles, providing a versatile solution to your security needs, giving you peace of mind no matter where you park your vehicle Host Battery: 3.7 V 700mAh lithium battery, working time about 1-3 months, standby time about 6 months Host Charge Port: Standard USB-C 5V (some quick chargers may not be compatible) Working Frequency: 433.92MHz Waterproof level: IP65 waterproof and dustproof Working Environment Temperature: -40-+70 Working Environment Humidity:Less than 80% Storage Temperature:-40-+70 Color:As Shown Material:plastic Package Contents: 1 * Alarm 2 * Remote Control 1 * USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.