Features gesture activation control technology which turns on headlight with the wave of a hand, allowing operation when hands are gloved, wet or oily. Offers low level red light that preserves night vision, signaling red (S.O.S) beacon light and optical 4X magnification allows for a wide or penetrating beam. provides variable light output from 100% to 10% by the press of a button. Powered by (3) AAA alkaline batteries (included). Rubber head strap included. Lifetime warranty. 2.48″ Length. Black.