Product name: Bicycle front and rear lights Light color: red/yellow Product model: ET-136 Battery: USB charging Material: plastic usb Brightness: 20LM Battery: 22mAH Waterproof: life waterproof IPX5 Function: It can be used with helmets, and can also be used with rubber belts to fix bicycle seats, hang backpacks, bicycle bags, clothes, etc. Lighting mode: (the first gear is always on) (the second gear is fast flashing eight (the third gear is slow flashing) Specifications: Enjoy a safe night ride Highlight bicycle front and rear lights Replaceable button battery Three modes, whatever you want Multiple ways to use Package Included: 1 piece*tail light MTB Bike Helmet With Taillamp For Men Women Sport Cycling Helmet Adjustable Mountain Road Soft Pad Safety Hat Accessories !!!ATTENTION PLEASE!!! Due to logistics rules, the battery of the small lamp was removed at the time of delivery. The battery model is CR2032, which you can buy near your residence.Please pay attention to safety when disassembling the battery to avoid hand injury. 1.Elegant design,High-quality helmet material and exquisite manufacturing 2.Universal size with adjustable lynon chin strap, fits for most people 3.Longer brim to better shield your head from sun and rain 4.small outer shell made of high strength plastic, strong and light, 5.The liner is high-level warm fabrics, and with high-density foam cushioning layer. 6.Well made and comfortable to wear. 7.With cycling warning light at tail.Gradient style only Specifications: Type:Helmet Material:EPS PC Size:approx. 33x22x16cm Color:Red,Blue,Hot ,Gray,Green ETC Package Included: Helmet*1 Brim of a hat*1 Notes: Please check the detail size/model information before purchasing. Due to the different monitor and light effect , the actual color of the item might be slightly different from the color showed on the pictures . Thanks for your understanding. Please allow 1-2 cmmeasuring deviation due to manual measurement. Chat with us should you need any assistance.