Sandberg USB Office Headset Pro Stereo, Wired, Office/Call center, 20 - 20000 Hz, 4.06 oz (115 g), Headset, Black Sandberg USB Office Headset Pro Stereo. Product type: Headset. Connectivity technology: Wired. Recommended usage: Office/Call center. Headphone frequency: 20 - 20000 Hz. Cable length: 82.7" (2.1 m). Weight: 4.06 oz (115 g). Product color: Black