MORE SAFETY: Super brightness of 250 lumens - High intensity light within 30 meters of the lighting area to allow you to see obstacles or potential dangers; the USB rechargeable lamp is waterproof, which allows outdoor use, practical, reliable and durable. 90 DEGREE ADJUSTABLE BEAM ANGLE: The old running light can only light up the ground in front of you. Our running light is ADJUSTABLE TO A 90 DEGREE ANGLE to meet the needs of runners on both up and down slopes. LATEST RECHARGEABLE BATTERY: Using the latest 2000mA rechargeable lithium polymer battery. The package contains a USB charger cable, so you can use it to charge it on any USB port. It is fully recharged in 3 hours and the usage time is over 5 hours in reduced mode. WITH 3 LIGHTING MODES: Strong, Weak and Strobe lights offer flexibility and the possibility of increasing battery life. By pressing the red button, you can switch from one mode to another of the three modes. The red rear warning light allows drivers to see you and thus avoid any mishap. ADJUSTABLE STRAP WITH ELASTIC TRUNK BAND: This running light has a flexible strap and is adjustable in length, which can be worn comfortably. Fully adjustable, it is suitable for runners tall or short, just like the straps of a headlamp, you can tighten and loosen the straps as needed. Product description This running light is a light worn on your chest, it is easy to wear and doesn't move after you wear it on your chest. It is ideal for running, jogging, dog walking, which does not press on your head and free your two hands too, this aui is also suitable for you when you need both hands. Specifications: Type: Chest light Material: Plastic LED: 8 red LED + 1 cold white LED Light mode: High beam / low beam / strobeLighting distance: 0-30m Charging time: About 2h Working time: About 5h Battery: 2000 mAh Polymer battery LED lifespan: 100,000 hours Waterproof rating: IP65 Instructions: Charging with the computer or mobile power, you can also use the household 4.2V power, but the maximum is not more than 4.5V. Waterproof, safe in water mist. 5 red LEDs under the triangle to indicate the battery capacity. If it only shows one LED light, you need to charge it. 5 lights means full charge. Package: 1 X outdoor lighting 1 X USB cable 1 X instruction manual Tips: Do not light your eyes with a flashlight, super glare, so as not to alter your vision, especially children!