Product Features / Efficacy: Bicycle lights, solar powered and speakers 3 in 1 can be installed not only on bicycles, but also in emergency kits as emergency lights for emergency use at night or during power outages. Technical Parameters: 1. Theme: Sports 2. Material: ABS Plastic 3. Features: Multifunctional, waterproof, lightweight, durable 4. Sport Type: Outdoor, cycling, riding 5. Light mode: glare, medium light, flashing mode 6. Size: 11 (long) *4 (width) * 3.5 (height) cm 7. Ring pattern: 5 sound effects 8. Weight: 145g 9. Brightness: 350 lumens 10colour: Black red 11. Battery: built-in 2000 mAh rechargeable Li-ion battery 12. Charging method: USB fast charging 13. Charging time: 4 hours 14. Solar charging: pure solar mode takes 12 hours to fill 15. Water Resistant: IPX4, No need to worry about rain Use of attention: 1. LED in the use of heat, is a normal phenomenon, please pay attention to keep heat (such as riding heat). 2. Do not use batteries for a long time. Please keep the habit of charging on time every month. Please do it in a safe place when you charge. 3. Please use the matching charger to charge the battery, or light is overshoot, heavy explosion risk. 4. Pay attention to waterproof, moisture-proof, and fall prevention. 5. This product is very bright, close to the eye may make people dizzy, please do not direct eyes, please place in the place where children can not reach. Package Included: 1 x Solar bicycle headlight 1 x USB Cable 1 x Bike Bell Our products have been well tested, examined and packaged before sending off. Any problem please feel free to contact us first so that we can supply the best service for you.