-Simple USB connectivity to your PC or detachable cable to take your mobile calls throughout the office-Intuitive inline controls to answer/end PC and mobile calls, control volume, and mute-Inline indicator lights and voice prompts give connection, mute, and volume status-Smart Sensor technology lets you answer a call by simply putting on the headset-Smart Call Transfer automatically routes audio from the mobile phone to the headset whenever it's put on - and visa versa-Built-in sensors provide contextual information, creating a long-lasting, adaptable platform-PC wideband audio with noise-cancelling microphones for high-quality PC telephony-Dynamic EQ automatically adjusts audio settings between voice calls and music-Digital Signal Processing (DSP) provides natural voice sound-Integrated A2DP lets you listen to streaming media from your mobile phone or tabletDurable carrying case for easy storage and portability; Plantronics; Plantronics BLACKWIRE C720-M; Home Office Products; Mobile-Cordless-Office Headsets