Plantronics - CS540 DECT headset — single-ear wireless headset (mono), 3 different wearing styles - connection to a desk phone - microphone with noise cancelling & range of up to 120 m:
Plantronics CS540 Wireless Headset System C054 CO54 DECT 6.0 with WH500 Headsets | eBay
Plantronics CS540 Wireless PC Headset | CS540 PC Headset | Headset Store
Plantronics - CS540 DECT headset — single-ear wireless headset (mono), 3 different wearing styles - connection to a desk phone - microphone with noise cancelling & range of up to 120 m:
Plantronics - CS540 DECT headset — single-ear wireless headset (mono), 3 different wearing styles - connection to a desk phone - microphone with noise cancelling & range of up to 120 m: