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SMART LIGHT PERCEPTION: When the light pattern of the bicycle rear light is slow flash mode or breathing light mode. If you drive in a dark environment, the taillights will automatically come on. After leaving the dark room, if the bicycle does not vibrate for 30 seconds, the taillights turn off automatically.
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 light
EASY INSTALLTION: 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 recharging
WATERPROOF amp; RECHARGEABLE: waterproof bike tail light against splashing water from any angle. Built-in 400mAh Polymer Lithium battery comes with a USB cord that charges from your computer, wall charger, power bank or any other device with a USB port. After charging for 2 hours, the tail light can work for 25?50 hours in different modes
Thank you for your trust and support! wish you a happy life.