3 LED Head Lamp:3 x XML-T6 LED:Ultra bright T6 LEDs beam, extensive lifetime of LED (100,000 hours). Zoomable,Zoom-in/out Adjustable(90 degree) ,Hands-free,4 light switch modes: Low - Mid - High - Strobe, convenient for different place to use. Adopting aluminum and new plastic material, anti-drop, anti-stab and durable.Easy to adjust the head strap for your usage. Water-Resistant:Prefect or outdoor activities, such as running, hiking, hunting, fishing rain etc, and indoor working light. Powered by two rechargeable 18650 batteries, you can use the wall charger or USB cable or car charger to charge the batteries.