Smart Sensing Bike Taillight, Bicycle Brake Sensing Rear Light, USB Rechargeable IP66 Waterproof, 6 Modes Bright Red LED

Smart Home bicycle back light build in smart light and motion sensor, the rear light will be turned to highlighted for 3 seconds, warning the rear driver to improve your safety when you have emergency situation
There are 6 light modes for you to choose from: ① Steady Light-12H；②Breathing Flash-16H；③ Slow Flash-24H；④ Rhythm Flash-24H；⑤ ECO Flash-60H；⑥ Fast Flash-23H. Different tail light modes provide more reliable safety escort. Make your ride more visible and clear, enjoy your ride to the fullest
USB rechargeable with a built-in 400 mAh battery that lasts up to 60 hours when fully charged. And 3 colors shows different situation：Green means in a healthy power level；Blue means the power level is between 30%-80%；Red means you need to charge the bike tail light