C4WRD LED USB Rechargeable Bike Light Super Lightweight Powerful 4 LED Bicycle Front Light with battery indicator and 2 LED Rear Bike Taillight Set to see and to be seen even from the side USB Light for even greater BRIGHTNESS, VISIBILITY and SAFETY Full Beam or Flash Mode TOOL-LESS Installation of the bike lights set in seconds with the wrap-around strap design to stay put in rough terrain LED Bike Light is almost UNBREAKABLE and WATER RESISTANCE due to durable Stretchable SILICONE BODY Rechargeable Light: MONEYSAVER with built-In USB RECHARGEABLE BATTERIES; comes with 2 Mini USB charging cables; last up to 7,5hrs in flashing mode or 3.5-4hrs in high mode