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.
Plug-and-play USB connectivity for fast, simple setup
Quick Disconnect capability allows the headset to detach without losing the call
PC Wideband delivers heightened speech clarity, providing the best possible PC audio quality (headset must support wideband audio)