Feature:1. Alert Function: The visibility of the LED red warning light is up to 100 meters, so that the moving vehicle has enough buffer time to ensure the of night running.2. All Round Waterproof: The multifunctional headlight has IPX4 level protection, no fear of sweat, rain splashing, dustproof, and can effectively deal with various outdoor environments.3. Rechargeable: The night running headlight adopts portable USB charging, large power, high brightness energy saving wick, built in high capacity lithium battery, long term battery life.4. Soft Light Source Technology: The headlight emits 170lm of uniform bright light, and the effective lighting range covers the field of of the human eye, helping you sweep through the dark.5. Multi Function: The outdoor headlight has three levels of adjustment, strong light, low light and flash, the strap is 28cm long, can be adjusted 5cm, stable performance, no plaque, no , no stroboscopic, long service life.Specification:Item Type: Night Running HeadlightMaterial: ABSString Length: Approx. 28cm/11.0inAdjustable: Approx. 5cm/2.0inBattery Type: Lithium BatteryBattery Capacity: 1500mAh (Included)Features: Stable Performance, No Plaque, No , No Stroboscopic, Long Service LifeHow to Use:Click red and white strong light, click red and white weak light, click red and white flashPackage List:1 x Night Running Headlight1 x Data CableNote:Please allow some errors due to manual measurement.