HamiltonBuhl Smart-Trek Headphone - Blue Accents feat_secure_storage the Koss QZ99 also includes

the Koss QZ99 also includes a volume control on the ear cup that makes adjusting sound levels a snap

and infrared LED light

ensuring comfort for users of all ages and head sizes

or co-presenters who share the stage

HamiltonBuhl Smart-Trek Headphone - Blue Accents feat_secure_storage the Koss QZ99 also includesHamiltonBuhl Smart Trek Headphone Blue Accents Prefer a different accent color? Pick below. Blue Green The Smart Trek deluxe over ear headphone is built for daily K12 use with replaceable leatherette cushions, an adjustable, twistable padded headband, and a tough 5' Dura Cord (chew kink knot resistant, PVC jacketed braided nylon). A thin barrel, 120 3. 5 mm stereo plug fits most cases, and the in line volume control makes quick level tweaks easy for