UC Standard version built for UC applications and softphones from Avaya Cisco IBM and moreExpand the connectivity options of your current Bluetooth headset with the BT300 Bluetooth USB adapter. Use with Plantronics Bluetooth headsets that feature multipoint connections and now you can manage both PC and mobile calls with a single headset.- Bluetooth version 2.0 provides up to 33ft of range from the PC- Mini USB adapter can stay in your laptop port for always-ready connectivity- PC Wideband delivers heightened speech clarity providing the best possible PC audio quality (if supported by Bluetooth headset)- Download the latest release of Plantronics software and get one-touch call answer/end with supported softphones