Yes, the term binos is short for binoculars. Purpose? For hunting, it gives you a much better view of the area around your stand or ground blind. Seeing how deer have a nasty habit of blending in really well with their surroundings, it's nice to be able to take a closer look at something without having to leave your position. Seeing the deer before it sees you is a great advantage. The also come in handy during 3D season for finding the 12 ring . Personally, I don't go hunting or scouting without mine.