Head torch battery powered and easy carry everywhere: USB C headlamp rechargeable in everywhere, 2000mAh lasts about 5.5 hours, perfect for Outdoors, Camping, Running, Storm, Survival, Night walking dogs. The LED head torch size: 3.46IN * 0.98IN * 1.50IN(88*25*38mm), as light as 0.16 LB(76g), can be easily placed in the pocket of casual pants, is easily carried.Convenient headlamp: The detachable rechargeable head torch easily detaches from the head strap and mounting bracket to become a versatile headlamp flashlight. It comes with a removeable 2000 mAh lithium battery(The diameter is 18mm, length is 65mm, type is 0, cylindrical battery) so you can replace it when it inevitably hits its lifespan, not reorder a new headtorch.Luxury aluminum alloy body: Most headlamps are cheap plastic crap that do not stand the test of time and outdated in design. It is metal aluminum alloy and IP65 waterproof resistant. Use mine for safety when outside rainning you don't have lighting.6 mode and memory functional head lights for forehead: White high/medium/>low/red light/red flashing/white light strobe(Double-click) 5 Mode by direct clicking tail slightly protruding rounded button. Stay in any mode for 10 seconds to activate the memory function.