Small size, easy to carry. Adjustable head strap, comfortable to wear. Good quality and long service life. LED headlamp Three Gear Dimming Mode Tail LED Light The Head Of 90 Degrees Adjustable Good To Use For Camping-Nocturnal-Rock Climbing-Night Riding-Fishing removable batteries direction for use: remove the batteries holder put the 3xAAA into the flashlight and according to the “+” “-” rightly