Feature: 1. Comes with a front \u0026 rear bright light, offering great visibility and safety at night. 2. Both front and rear lights are rechargeable, just connect it with any USB devices. 3. Feature a one-touch switch, 3-4 working modes serves for different needs. 4. Great waterproof performance, safe to use in rain and winter weather. (Tip: avoid long time exposure in rains). 5. Comes with 2 rubber O rings for easy installation. 6. Built-in li-ion polymer battery delivers extra long battery life and strong power output. 7. Can also be used as an emergency light, flashlight, helmet headlight for Cycle, camping, hiking, walking or other night work in daily life at any time. Specification: Both front and rear lights are included. Super bright without dangerous dazzling. Absolutely a wonderful bike accessories for Cycle enthusiasts. Features: Comes with a front & rear bright light, offering great visibility and safety at night. Both front and rear lights are rechargeable, just connect it with any USB devices. Feature a one-touch switch, 3-4 working modes serves for different needs. Great waterproof performance, safe to use in rain and winter weather. (Tip: avoid long time exposure in rains). Built-in li-ion polymer battery delivers extra long battery life and strong power output. Comes with 2 rubber O rings for easy installation. Can also be used as an emergency light, flashlight, helmet headlight for Cycle, camping, hiking, walking or other night work in daily life at any time. Specifications: Material: ABS Color: Black Quantity: 2 pcs ( front light & rear light ) Charging Mode: USB charging Waterproof: IPX4 Front Light: Battery: 800 mAh Light Mode: Strong, Slight, Flash Endurance: 2.5H-4H-12H Size: 6.5 * 2.8 * 3 cm / 2.6 * 1.1 * 1.2 in Rear Light Light Mode: Long bright, Slow flash, Shun flash, Strobe Endurance: 1.5 - 4 H Size: Approx. 73 * 23 * 20 mm / 2.9 * 0.9 * 0.8 in Package Size: 13 * 10 * 3 cm / 5.1 * 3.9 * 1.2 in Package Weight: 69 g / 2.4 oz Package List: 1 * Front Light 1 * Rear Light 1 * USB Cable 2 * Rubber Ring Package List: 1 * Front Light 1 * Rear Light 1 * USB Cable 2 * Rubber Ring