Rechargeable 500 lumen headlamp Dual-Fuel: Maximum flexibility to utilize either the included rechargeable lithium ion BD 1800 battery or standard AAA alkaline batteries Micro-USB port included on rear battery compartment for easy recharging Red taillight strobe with on/off programmability for increased visibility Six-setting 3 LED battery meter PowerTap™ Technology for instant transitioning between full and dimmed power Variable dimming and strobe mode Digital lockout feature safeguards against accidental use when stored in a pack or pocket Perforated elastic headband with removeable top strap IPX4: Storm proof—Tested to withstand rain and sleet from any angle Black Diamond Sprinter 500 Headlamp