OxyLED&reg; BTL-10 Rechargeable Bike Bicycle Cycling Safety Zone Tail Light, 8 Super Bright LED Taillights, 2 Red LaserWaterproof, 1000mAh Li-ion Battery,180&deg;Adjustable Bracket, 220&deg;Visibility 8 LED Taillight & 2 Laser Warning LinesThe OxyLED USB Rechargeable high performance LED Bicycle Tail Light. Featuring 8 super Bright LED taillights, and 2 Laser Safety Warning Lines. With it's waterproof design,It is suitable for night & rainy and foggy weather riding, The laser lane markers will keep other traffic away. 3 working light modesQuick blink, Slow blink and Constant on.The working light modes are great,add some visibility/safety to your bike for night rides,and add a pretty cool touch to the whole thing when it is dark.Note : Do not look directly at laser lights Use. USB RechargeableThe built-in Li-ion battery can be recharged by USB. The 1000 mAh battery will operate the light for about 6 hours. Built-in Circuit ProtectionThe OxyLED USB Rechargeable Bike Tail Light is built-in circuit protection. The 180-degree adjustable bracket provides 220 degrees of visibility from up to 1 mile away. Stylish Design & Friendly ServiceStylish cool "jewel" appearance design, lightweight and easy to use.Every OxyLED Product have 30-day money back guarantee, 12 month replacement warranty and lifetime support guarantee.