Headlamp Kit, Keep Dark & Baddy away – Great gear/backup for your home,car or boat or during blackouts caused by hurricanes,tropical storm or blizzards. Includes 1x LED Headlamp, 1x Rechargeable Li-ion Battery, 1 X AAA Battery Holder, 1x USB Cable. Hands-free light, which is ideal for distance or hands-on work,a great gift or present for outside adventure. Headlamp High Lumen Brightness, AAA/ Rechargeable 3.7V Battery Available – Support 3XAAA for emergency supply or 1X 3.7V big battery. Included chargeable battery is high-quality, which is safe and has MSDS,UN38.3 Test Report. You can use this rechargeable headlamp on your head without any worries and recharge it via USB port. Its full power can last the headlight at brightest mode for hours. Zoom Function & 4 Light Modes – Normal brightness mode(1 LED light up), power saving mode (2 small LEDs light up), high brightness mode(3 LEDs light up), strobe light SOS mode (3 LEDs blinks). Back-of-head red safety light for warning runners, bikes or cars. With this zoomable main head, this led headlamp flashlight has powerful floodlights for superb peripheral lighting and spotlight to focus.