SOP-HA7M Features: -Sack-O-Phones Includes: (5) HA7 Deluxe Headphones with Leatherette Ear Cushions, (1) Sack-O-Phone Carry Bag. -Draw string, non-woven polypropylene material. -Frequency response: 18-20k Hz. -Impedance: 170 Ohms. -Sensitivity: 100dB. -Max. Input: 100mW. Earpiece Type: -Full-Size Ear Cushions. Adjustable Earpieces: -Yes. Global Product Type: -Headsets-Binaural. Headset Style: -Earhook/ Over-The-Head. For Use With: -Laptop Computers, Mac, Pc/Notebook Computers. Microphone: -Boom Microphone. Color(s): -Gray. Earpiece Material: -Leatherette. Headset Type: -Binaural. Dimensions: Overall Height - Top to Bottom: -12". Overall Width - Side to Side: -7". Overall Product Weight: -4.08 lbs.