Ultralow profile earcups; Rubberized coating; 2 high-gain omnidirectional microphones; Audio input jack; Low noise and frequency tuned for natural sound clarity; Volume control; Compact folding design; Comfort headband with metal wire frame; Sound-dampening composite housing; Lab noise reduction rating: 23 dB; Sound activated compression–.02 second reaction time ; Recessed volume control knob on external battery door; Includes manual and 2 AAA batteries; Carbon;