Plantronics HW261N Binaural Headset Description Plantronics headset - Wideband audio for more natural sound with wideband telephones - The highest level of performance for wideband VoIPmunications - Premium audio ensures quality customermunications - Comfortable design even for intensive all-day use - Over-the-headfortable design for all-day use - Binaural stylePLHW261 Must be used with a Plantronics USB-to-headset adapter or headset amplifier (not included). Plantronics "QD" 4-pin quick connect/disconnect. Features: The SupraPlus brings new standards in all-day comfort and reliability to telephone professionals. Enhanced receive-side audio quality, intelligent flexible boom and stylish design provide greater headset flexibility. Must be used with a Plantronics USB-to-headset adapter or headset amplifier (not included). Plantronics offers monaural or binaural versions with either voice tube or noise-canceling microphones. Plantronics "QD" 4-pin quick connect/disconnect. Product Details: RAM: ‎2000000 MB National Stock Number: ‎5965-01-592-8748 Brand: ‎Plantronics Item model number: ‎64339-31 Item Weight: ‎4 ounces Product Dimensions: ‎6.99 x 5.3 x 2.1 inches Item Dimensions LxWxH: ‎6.99 x 5.3 x 2.1 inches Color: ‎Silver Computer Memory Type: ‎SDRAM Voltage: ‎0.5 Volts Department: ‎womens Manufacturer: ‎Plantronics Language: ‎English Is Discontinued By Manufacturer: ‎No Date First Available: ‎August 26, 2008