2 in 1 LED Headlamp Flashlight Combo, 150 Lumens, Ultralight Waterproof, 1.2oz,Compact, Full-metal body, for Running, Camping Hiking, Cycling, Kids,ONLY 1 AA battery req & Incl 1 Energizer AA.COLORDAY GIFT PACKAGE: The best Lightweight Flashlight Headlamp Combo (Size:0.6In X 2.83 In) comes with A WATERPROOF HARD CASE + 1 Energizer AAs ($20.97 Value) . It is a perfect gift for you and your loved ones. LIGHTWEIGHT: Only 1.2 oz (not include the battery and head strap), as heavy as 3 50 cents coin weight. Requires only 1 AA battery (Included) , with elastic, secure, and adjustable head strap assures snug and comfortable fit, DOSEN"T Shift when running, You won't even notice wearing it. ULTRA-BRIGHT: CREE High Power LED,4 adjustable modes: High beam 150 LM, low beam 40 LM, Strobe and SOS. Irradiation distance: 100 meters. 180 degree adjustable, Friendly circuit design,low battery indicator. ROCK SOLID: Fullmetal body (No Plastic), Waterproof, dustproof, Shockproof under 1 meters, made of durable. Satisfaction guaranteed and backed by 1 Year warranty. PERFECT GIFT: Perfect headlamp for outdoors & indoors - running, caving,camping, hiking, cycling, fishing, hunting, DIY projects, plumbing, electrical work, auto repair, reading & power emergencies.