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The Plantronics Blackwire C420-M headset connects via USB to your computer. It features Enhanced Digital Signal Processing and SoundGuard technology, which improve voice reproduction and protect against audio spikes. The headset is lightweight, foldable and has soft, swivel-mounted ear cushions. The noise-canceling microphone is mounted on a swiveling boom and has QuickAdjust technology. Plantronics integrates a unique dynamic EQ that optimizes voice quality when on calls and automatically adjusts EQ settings for high-quality music or multi-media playback. The lightweight headset also has inline controls for quick operation and simple plug-and-play connectivity. The C420-M even includes a travel case to protect your headset during transport and storage.
• Wideband for best PC audio telephony • Dynamic EQ stereo automatically adjusts for voice and multimedia use • Noise-canceling microphone filters out background noise • Enhanced Digital Signal Processing (DSP) technology provides more natural voice sound • SoundGuard technology provides protection against audio spikes • Folds flat and tucks into carrying case for use on the go • Call controls at your finger tips; call answer/end, mute, volume +/- • Optimized for Microsoft Office Communicator 2007 and Microsoft Lync 2010