Verbatim Multimedia Headset with Microphone - Wide Frequency Stereo, 40mm Drivers, Comfortable Ergonomic Fit, Adjustable, Built-in, omni-directional Wide frequency stereo headset 40mm Drivers Great bass reproduction Comfortable ergonomic fit even after extended use Adjustable, built-in, omni-directional microphone This lightweight, stylish headset incorporates an adjustable, built-in, omni-directional microphone and is perfect for internet voice chat, skype calls, video conferencing and internet gaming on your PC or notebook. The excellent call clarity and audio capabilities makes it ideal for all your multimedia and communication applications. Features also include a smart, in-line volume control remote so you can take ultimate control of the volume. With great bass reproduction from the quality 40mm drivers, soft foam ear cushions and an adjustable headband, this headset not only sounds great, but provides a comfortable and ergonomic fit even after extended use. NB This headst has 2 x 3.5mm connectors (NOT USB). Product Specifications: Driver Unit: 40mm Frequency Response: 20Hz-20K Hz Impedance: 32 Ohm +/- 10% Max. Power Input: 100mW Sensitivity (@1kHz): 112dB +/- 4dB Jack: 3.5mm x 2 Cord Length: 1.8m +/- 10cm Microphone Impedance: 2.2K ohm Microphone Sensitivity: 54dB +/- 3dB Microphone Jack: 3.5mm Features and Benefits: Wide frequency stereo headset Adjustable built-in microphone Adjustable in-line volume control Designed for Multimedia applications Powered by soundcard