✔The front and rear front and rear bike lights are fully USB rechargeable, can be charged by smartphone charger, computer, mobile power bank or any device with USB port. < ✔Only takes 2 hours to fully charge, It can work 6 hours on the highest mode. ✔You can install the headlight without any tools, Can be installed on mountain bike , child, street, stroller, wheelchair, motorcycle, scooter, electric bicycle. ✔It is adjusted and fixed by a durable and highly elastic rubber band, and can be installed in any position of the bike. ✔Three operating modes lighting: high, low and fast flashing, free to change according to your needs. ✔The LED bicycle light kit can easily illuminate the front, guide the road and warn vehicles and pedestrians behind at the same time to protect your safety. Package Content: 1x Headlight (white light) 1x Taillight (red light) 2 X USB Cables 2 X Rubber Band