Sennheiser DW 10 USB Office Monaural Ear-hook,Head-band Black,Brushed steel headset

Sennheiser DW 10 USB Office. Purpose: Call center/Office, Operating temperature (T-T): 5 - 45 °C, Storage temperature (T-T): -20 - 70 °C. Headset type: Monaural, Wearing style: Ear-hook, Head-band, Colour of product: Black, Brushed steel. Connectivity technology: Wired/Wireless, Wireless range: 180 m. Ear coupling: Supraaural, Headphone frequency: 150 - 6800 Hz, Acoustic system: Closed. Microphone frequency: 150 - 6800 Hz