The first product of its kind, Night Runner shoe lights help you stay active past sundown by offering unrivaled visibility, comfort, and safety in low-light environments. Whether you're hitting the city run trails or pounding the pavement, Night Runner's 150 lumen LEDs help you stride confidently by illuminating the path up to 30 feet ahead of you. Plus, back-facing red tail lights alert motorists of your location. Features: - Weatherproof: Built to survive in all weather conditions, whether it is heavy rain, extreme heat, or even the coldest of winters. - Faster Charging, longer lasting: 2.5 hours of battery life on high and 5 hours on low. - Li-on rechargeable battery via Micro USB. - Extreme Brightness: 150 lumens with two ultra-light LED light units with a light beam of 30 feet. - 360 degrees of visibility in front and two red safety taillights. - Universal / easy install: Fits any type of running shoe and fastens securely to shoelaces with easy glide lace grip.