::: Deluxe Headset(HS-770) :::

●EXCELLENT 26dB NOISE REDUCTION RATING ●SWITCH SELECTABLE FULL STEREO OR MONO OPERATION ●DUAL(DIFFERENTIAL)VOLUME CONTROLS ●PRE AMPLIFIER WITH SELECTIVE FILTER ●NOISE CANCELING ELECTRET MIC.W/MUFF ●MIC BOOM-FLEXIBLE/METAL SWIVEL/METAL HINGED. ●VERY LIGHTWEIGHT AT 13.2 OUNCES ●FOLDING BALL DESIGN IS EASY TO STORE AND CARRY ●MICROPHONE PLUG : .206 DIAMETER GOLD PLATED ●MICROPHONE RANGE : 300-8,000HZ ●MICROPHONE SOURCE OHMS : 220-2,200 ●SPEAKER PLUG : 250 DIAMETER GOLD PLATED ●SPEAKER OHMS : 150 MONO, 300 STEREO ●SPEAKER RANGE : 20-17,000HZ ●HEAD BAND: AIR CELL ●EAR SEAL : SILICON GEL