Features:4 switch modes to get different brightness with zoomable function: High， Low， Blue Light， and Strobe.Rotate the head to zoom.USB output port design， you can charge your phone or other USB device for emergency.With a charging interface on the battery holder， much more convenient for charging.Headlight can be adjusted around 90 degrees. Durable aluminum alloy crust， abrasion resistance.The adjustable and elastic head band for conveniently putting on or taking off.And 3 red indicator lights on the battery holder plays a good warning role in night walking or cycling!Suitable for outdoor sport lovers to do some outdoor activities， such as hunting， cycling， climbing， camping， etc.Specifications:Color: Black + goldenLED type: XM-L T6 + XPELumen: 2000LMMaterial: Aluminum alloyPower supply: 1 or 2 * 18650 or 3*AA battery (not included)Charger input: AC 100-240V， 50/60HzSwitch type: Single button (On， off and mode select)Illumination distance: About 500mHeadlight size: Approx. 5.8 * 4.2cm / 2.3 * 1.7in (max length * diameter)Headlight weight: Approx. 230g / 8.1ozPackage size: 11.5 * 11 * 10.5cm / 4.5 * 4.3 * 4.1inPackage weight: Approx. 333g / 11.8ozPackage List:1 * Head Light (not include the batteries)1 * Charger (US plug)1 * Car Charger1 * AA Battery Holder