3-in-1 Waterproof Wireless Bike Vibration Alarm Remote Control Bike Detector Smart Bicycle Taillight Alarm System Usb Charging Description: Wireless range: 10-20 meters Working environment temperature: -20~60 degree An alarm 700MA batteries standby for 6-10 months. A remote need a 12V/27A alkaline battery standby for over 1 year. Specifications: Taillight/Brake light/Anti-theft alarm/Bike bell 3-in-1 function! Reminding the surrounding pedestrians and drivers with light and sound warning, effectively protect the safety of the car and the rider! Arming when parking, deterring thieves and protect your car effectively by loud alarm sound and blink light! PC+ anti-UV material, waterproof and dustproof, high and low temperature resistance, not afraid of wind, rain and severe cold and heat! Package Included: 1*Alarm 1*remote control 1*Charging cable 1 set of accessories Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store