Material: engineering grade ABS material Lamp beads: built-in 38 LED lamp beads Power: 5W Capacity: 5000MA (full capacity double lithium battery) Battery life: 6-12 hours Charging port: USB Function: three levels of light source, first level of strong light, second level of low light, third level of SOS flashing. Turn on the light to display the blue battery indicator, and after 15 seconds, it will change to a red long-bright warning light. Press and hold the button for 3 seconds to switch to the blue battery indicator. After 15 seconds, it will change back to the long-bright red warning light. When the battery voltage is lower than 3.2V, the light source will flash three times to alarm, reminding to charge in time.Package included: 1*Sports running belt beam lightPackage List11. It has a wide irradiation range, light and durable, long discharge time, long-term wear and no load, waterproof life, battery box with power indicator. 22. The set is equipped with a USB data cable, which can be charged in a variety of ways. Suitable for night running, mountain climbing, cycling, camping, outdoor travel, etc. 33. The waist bag and night running light are detachable, so you can clean the sweat and stains on the waist bag at any time. 44. The belt is flexible and adjustable to prevent items from bouncing when you are running, jogging, walking or crossing obstacles.