[300lm Ultrabright] Portable Mini LED Lamp 3 Modes Adjustable Headlamp - Lifetime Warranty Adjustable elastic head-strap to give you a comfortable feeling, Suitable for various age groups and gender. 3 Switch Modes: Bright / Weak / Strobe. Small size and light weight make it carried easily. Powered by 2*CR2032 buttons battery, 5 hours runtime. Water-resistant & shock resistant casing, except diving. Suit for Hunting, Fishing, Running, Mountain climbing, Camping, Reading, Hiking, Night walking, bike tail light.etc