Modular design gives end users a choice of mono or stereo audio options and wearing stylesLow profile design is ideal for video conferencing, PC telephony and other multi-media applicationsDurable, portable design easily tucks into travel case, ideal for professionals on-the-goAnswer/end/mute controls simplify call management while inline indicator lights show call or mute statusNoise-canceling microphone reduces background noiseWideband delivers heightened speech clarity, providing the best possible PC audio qualityA dynamic EQ feature optimizes your voice quality when on calls and automatically adjusts the EQ settings when you�re listening to music or want high quality sound for multi-media playbackEnhanced Digital Signal Processing (DSP) provides more natural sounding voicePL8580001