Plantronics 204446-01 Blackwire C325-M Corded USB Binaural Headset WITH 3.5MM CONNECTION

• The C325-M delivers top notch UC features—with bottom line performance.
• Easy to use, simple to deploy, and offer the choice of USB or 3.5mm connectivity.  
• Offering PC wideband, noise-canceling microphone,the Blackwire C325-M headsets provide a truly outstanding stereo audio experience – ideal for voice, music and multi-media.
• The Dynamic EQ feature optimizes your voice quality when on calls and automatically adjusts the EQ settings when you're listening to music or multi-media.
• Lightweight metal headband offers durability and a custom, comfortable fit. Leatherette ear cushions fold flat for easy portability with included carrying case.
• Dual Connectivity. Connect the C325-M to your PC and mobile phone – combining the comfort and durability of corded with the freedom and flexibility to connect to your wireless device through a 3.5mm connection. Ideal for knowledge workers who need a solution for managing calls on their PC, mobile phone or tablet. 
• Software-enabled Functionality With Plantronics Spokes software get the added value of: Call control across multiple softphones
• Battery meter conveniently displays headset battery life remaining in PC icon tray
• Headset control panel allows for customization of settings, including call notification and related options
• UC presence automatically updated when on a PC call*
• *Feature currently for Microsoft Lync and Skype 
• Over-the-head, for enhanced stability (Monaural)
• Leatherette ear cushions fold flat
• Carrying case included
• Microsoft-certified version optimized for Microsoft® Lync and Microsoft OCS 2007
• REFURBISHED Backed by a 6 Month Warranty