XIANQI WIDE FIELD of VIEW : 180 Degree field of view degree wide angle design, the led bike light will make you more visible for other road users in dark night or daytime. It will be great for your extra security in ridingequipped with ultra bright wide beam LED, will make you more visible for other road users.INTELLIGENT BRAKE SENSOR: A build-in integrated accelerometer ensures accurate brake detection. With the brake sensor, Automatic ultra bright brake light will automatically light up after braking.The bicycle light is super bright and highly visible from a distance, really catch attention to enhance your safety.SENSING FUNCTION: In Fast Flash and Breathing mode with light sensor, the flashing light will turn on automatically in low brightness and turn off in high-intensity light. Save your time to switch the bike tail lightEASY INSTALLTION: Seat Post mounting offered fit on any road bikes.Saddle mounting bracket and adjustable silicone strap provided, make the bicycle rear light flexible to quick install or detatch on bicycles, seat post, helmet. Very convenient to unscrews from the mount cap for rechargingDelivery Quantity: 1PCProduct color: blackProduct size:38*34mm