Features:The triangular fixed structure can avoid the swaying of the chest Light and battery during running, ensuring comfort.Safety: Enabling the night runner to be seen by the people behind and the drivers of vehicles to avoid potential safety hazards.3 lighting modes: bright, weak, flash. The battery case can display the power level with warning light.IP44 waterproof design is very suitable for outdoor activities, night running, walking, jogging, camping, hiking, fishing.Specification:Material: ABSColor: as picture shownBattery: built-in 1200mAh lithium batteryLighting time: about 3-5 hoursMode: 3 (bright-weak-flash)Focus: up and down 90 adjustmentBattery box: display power level, with indicator lightPackage List:1 x Night Running Light1 x USB Charging LineNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..