The black, stereo headset is ideal for computer use and features comfortable ear pads and an adjustable headband. Supplied with a robust lead terminated in a 3.5 mm stereo jack plug. Ideal for General Computer Use Soft Ear Pads & Adjustable Headset for Comfort Specifications Bass Driver (mm): 27 Colour: Black Frequency Response (Hz): 20-20000 Impedance (Ohms): 32 Lead Length: 2m Lead Style: Straight Plug Type: 3.5mm Stereo Jack Plug Sensitivity (dBV/Pa): 104 Dimensions 160 x 135 x 50 mm Weight 0.05 kg (Single Unit)