Sennheiser SC 70 USB MS Wired Office Headset - Black Wearing style: Headband Connector : USB Frequency response (Microphone): 150 Hz – 6.800 Hz (Wideband) Frequency response (Headphones): l60 Hz – 16 kHz Microphone : Noise Cancelling Sound pressure level (SPL) : Max. 113 dB limited by ActiveGard® Cable length : 2.1 m / 6.89 ft Weight : 120 g/ 4.23 oz Color :Black Speaker type : Neodymium Magnet Speaker |