SMART CHARGING TECHNOLOGY: Bike light, these LED bike lights shine extra bright in the dark. Charge the bike light from a device with a USB port and the automatic and fully charged switch-off system ensures safety and a longer battery life.FOUR LIGHT MODE:Bike light set the front light and rear light have a one-touch switch with four different lighting modes, full brightness, half brightness, fast flashing and slow flashing.EASY INSTALLATION: Advanced and flexible silicone mounting straps provide great security and hold the USB rechargeable bike light set firmly enough, and the bike light can be installed in less than 7 seconds. They are small, compact and easily portable.MUTIFUNCTION: This bike light set is versatile enough for cycling, hiking, camping or outdoor activities and can be used as an emergency torch. Choose white for the front headlight or red for the rear tail light Connect the USB cable to the USB input port on the bike light Plug the other end of the cable into either a power adapter (not included) connected to a wall socket or a USB port on an active computer The LED indicator on the front light will turn green when the front light is fully charged and the rear light will have an orange tint when complete.Package Contents:1 X Headlight (white light),1 X Rear light (red light),2 X USB cable