If you are looking for a portable and convenient night running light, then your research is over here. With flexible design, running is convenient to place on your chest. Easy to install and disassemble. The light beam is adjustable for different angles. Features -Color:Assorted Color -Material:ABS, nylon -Size (back light):10.50X5.30X2.70cm/ 4.13X2.08X1.06in -Size (front light):7.00X6.00X3.00cm/ 2.75X2.36X1.18in - running light can offer you a good solution, giving you bright view and full protection. -Simple design, the strap can wear the light on your chest conveniently, free your hands to do what you need. -High brightness can environment around you, providing more safety, suitable for jogger, running, cycling, climbing, fishing, etc. - battery, convenient micro USB interface charging, can be charged by USB adapters, computers, mobile power supplies, laptops, and more. -With high and low brightness levels adjustment, in rainy and snowy days, the good waterproof will offer you normal use. Specification -Built-in battery: 18650, 2200 mAh battery. -Charge method: Micro USB. -Light mode: three mode: floodlight, concentrated strong light and concentrated weak light. -Waterproof grade: IPX4. -Lumen: 400-500 lumen. -Range: 50-100 . -Work time: Strong light discharge for about 3 hours. Package list: 2 1 x Strap 1 Cable