Flexible strap, adjustable length, comfortable wearing, suitable for most people with different body shape.

Features:
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.
IP65 waterproof, safer when running in the rain.
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.

Specifications:
Lighting modes: high beam, low beam, strobe
Luminous flux.: 250lm / 90lm / 180lm
Product color: black
Material: plastic + metal
Charging interface: USB 2.0
Charging voltage: DC 5V
Product interface: mirco USB
Battery: 1000mAh lithium battery (built-in)
Light source: LED
LED quantity: 1 white, 8 red
Chest light color: white
Safety warning light color: red
Waterproof rating: IP65
Chest light size: 10 * 9.8 * 2.3cm / 3.9 * 3.9 * 0.9in
Safety warning light size: 9.6 * 6.6 * 1.7cm / 3.8 * 2.6 * 0.7in
Package size: 15 * 10 * 2cm / 5.9 * 3.9 * 0.8in
Package weight: 210g / 7.4oz

Package list:
1 * Night Running Light
1 * USB Charging Cable