PRODUCT GRADING Grade A > As New Condition > 12 Months Warranty WHAT IS IN THE BOX Plantronics C325.1-M BlackWire Binaural/Stereo Headset PRODUCT DESCRIPTION Easily manage calls from PC, smartphone or tablet with USB or 3.5mm connectivity Ultra-soft leatherette ear cushions fold flat for easy storage and portability in the included carrying case Lightweight metal headband offers durability and a customizable, comfortable fit Smartly placed indicator lights and helpful audio alerts give PC call, mute, and volume status Intuitive inline controls to answer/end PC calls, control volume, and mute BLACKWIRE 310/320 Enter UC with the best-featured headset you never thought your budget could buy. The Blackwire 310/320 USB headsets deliver simplicity, durability, comfort, and professional sound at an entry-level cost Corded reliability that\'s ready when you are Meet the Blackwire 310/320 corded USB headsets designed for companies just starting out with Unified Communications. The headsets easily and intuitively juggles PC calls and multi-media using audio alerts to manage connection, mute and volume status. Easy to use, the Blackwire 310/320 offers premium hi-fi stereo audio (C320) and all-day comfort. Superior Audio Quality Offering PC wideband, noise-canceling microphone and hi-fi stereo sound (C320/325), the Blackwire 310/320 provides a truly outstanding audio experience – making it 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. Software-enabled Functionality 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 Box Contains Blackwire C325.1-M headsetHeadset Cable (2.13m)