Bryton: Guard Your Ride Visual And Audio AlertsThe GARDIA radar detects vehicles approaching from behind up to 150 meters away. By working seamlessly with compatible bike computers and GARDIA app, the GARDIA radar tail light provides both visual and audio alerts. Brake Detection Utilizing a built-in gyroscope sensor, the Bryton GARDIA R300 rearview radar can detect when you are braking and notify vehicles behind you with a brake light, lowering the possibility of collisions when slowing down or emergency braking.Smart Light SwitchWhen connected to compatible Bryton bike computers, the GARDIA R300 will utilize the computer’s built-in light sensor to adjust its light mode based on current light conditions. If sufcient light is detected, the tail light will be switched to day ash to conserve battery or when riding in darker conditions, the tail light will automatically switch to night ash.Auto change Warning LightWhen vehicles are approaching from behind, the Bryton GARDIA R300 will be based on the level of threat and automatically change to suitable warning light to alert the vehicles from behind. SPECSDimensions - 97 x 20.9 x 40 mmWeight - 68gWater rating - IPX7Viewing Angle - 220 DegreesLED Indicator - ANT+ and Bluetooth Link / PowerModes - Battery LifeHight Solid - 9hrsLow Sold - 12hrsGroup Ride - 10hrsNight Flash - 22hrsDay Flash - 27hrsLED Off - 40hrs