Rockbros Rear Light with Smart Brake Sensor

RockBros rear bike light smart sensoring bicycle taillight---It is time to go out to riding your lovely bike with your family and your friends to enjoy this leisure time! Then you must need this SMART rear light. Be seen is safe! This lightweight and compact rear bike light includes a rear light, one cable and ONE mount. USB rechargable design can promise a longer service life. Universal charging condition. Smartphone, power bank can be used to charge. No tools are needed for quick and easy installation. Made of alluminum alloy, this tail Lights are both durable (scratch-resistant cover) and water resistant. Perfect for day or night riding. Be seen in the daytime and light up your path at night. With 400mAh, its using time can up to 50h at breathing mode. With 4 blue little indicators, its remain battery will be shown by them. Equipped with smart sensoring design, it will light to warn to the passengers and cars when you brake or any vibration is sensed. If you wanna enjoy riding at n