two lenses connected together a bridge between the two lenses an eyepiece for each lens an adjustable focus for each lens an adjustable diopter for each lens an adjustable eyecup for each lens a carrying case or strap
binocular which has two lenses connected together binocular which is a bridge between the two lenses binocular which is an eyepiece for each lens binocular which is an adjustable focus for each lens binocular which is an adjustable diopter for each lens binocular which is an adjustable eyecup for each lens binocular which is a carrying case or strap