Fashionable and avant-garde style, light quality, comfortable and convenient to use. Cool white lighting in the front and red lighting in the back. Long irradiation range, 8 red LED light beam can be fully irradiated running in front of the body 0-20M. Flexible strap, adjustable length, comfortable wearing, suitable for most people with different body shape. USB charging only 5 hours (can connect to external battery), more than 5 hours working time. Type: Night Running Light LED Light: 8 Red LED + 1 Cool white LED Light Mode: High beam / low beam / strobe Luminous Flux.: 250LM / 90LM / 180LM Beam Angle: 120 degrees Charging Time: About 5h Working Time: 2-5h Waterproof Rating: IP65 colour: Black Material: plastic