Plantronics DA40 - USB AUDIO PROCESSOR - Corded USB-to-headset adapter brings superior call clarity for PC calling.

Expand the connectivity options of your current Plantronics H-Series headsets with the DA40 USB adapter. With this corded USB-to-headset adapter and H-Series headset (traditionally used with a desk phone) you can now manage PC communications with superior call clarity.\n\n- Plug-and-play USB connectivity for fast, simple setup\n- Quick Disconnect capability allows the headset to detach without losing the call\n- PC Wideband delivers heightened speech clarity, providing the best possible PC audio quality (headset must support wideband audio)