DescriptionThis item is well made of premium material for durable and practical use.Built-in 600mAh Li-polymer rechargeable battery, stop wasting your money to buy batteries again. This bike taillight can be charged from your computer or any device with a USB port. The silicone strap that is highly elastic allows for easy installation and removal anywheresuitable. You can install it at front, back or somewhere else suitable on bike for different purposes, you can also install it on helmet or backpack as a beacon at night.Features- COB LED lights with high brightness, 4 light modes adjustable, easy to be noticed at night and in low-visibility environments. - IPX6 waterproof level with water-tight rubber USB port dust cover, ensures safe and reliable use in all conditions. - Built-in 600mAh Li-polymer rechargeable battery. This bike taillight can be charged from your computer or any device with a USB port. - With adjustable silicone buckle fastener, easy and quick to mount on your bike handlebars, seatposts, and even your helmet or backpack for convenient outdoor lighting. - Novelty shape design, make your bike look cool and stylish and add more individuality.Specifications- Color: As shown - Material: PC and Silicone - Size: About. 7 x 3 x 2 cm - Flashing Mode: 4 Modes adjustable - Lamp beads: COB - LED light Color: Red - Recharge: USB - Battery: Build-in 600mAh Li-ion Battery - Charging time: 2-3 Hour - Luminance: 120 Lumens - Water Resistant: IPX6