Maxell 199929 HP-200M Over-Ear Wired Headphones with Microphone • 30 mm drivers;• Impedance: 32 ohms to efficiently conduct power;• Frequency response: 20 Hz to 22 kHz for faithful sound reproduction;• Inline microphone;• Adjustable headband and foam padded earpieces for comfort and extended use;• Swivel earcup design for flat folding;• 6 ft. cord with 3.5 mm connector;• Black;