Features: ULTRA LOW PROFILE EAR CUPS INCLUDES TWO US FLAG PATCHES RUBBERIZED COATING TWO HI GAIN OMNI DIRECTIONAL MICROPHONES AUDIO INPUT JACK LOW NOISE / FREQUENCY TUNED FOR NATURAL SOUND CLARITY VOLUME CONTROL COMPACT FOLDING DESIGN COMFORT HEADBAND W/ METAL WIRE FRAME SOUND DAMPENING COMPOSITE HOUSING NRR 23 SOUND ACTIVATED COMPRESSION - 0.02 SECOND REACTION TIME RECESSED VOLUME CONTROL KNOB EXTERNAL BATTERY DOOR OPERATES ON 2 "AAA" BATTERIES INCLUDED