The Savi W740 Multi-Device Wireless Headset System is an ideal all-in-one communications system for professionals who use a combination of PC, mobile and desk phones for personal/conference calls, webinars, video conferencing and multimedia audio. Three-way connectivity lets you easily switch between PC, mobile and desk phone calls while adding the capability to transfer audio between your headset and mobile phone for continuous in and out of office use. Additionally, multiple style headsets can be added for future expansion, versatility and wearing options. Conference in up to three headsets for enhanced collaboration. The Savi W740 is capable of up to seven hours of talk time, or unlimited talk time with the deluxe charging cradle kit (sold separately). The noise-canceling microphone reduces background noise ensuring exceptional audio quality and easing listener fatigue. It also delivers high definition voice quality with advanced wideband audio and enhanced digital signal processing (DSP) making speech clearer and more natural. The lightweight W740 headset allows for three comfortable, customizable wearing styles; over-the-head, binaural and monoaural, and has a microphone and indicator light. It also includes one-touch call answer/end and volume up and down controls. Aural safety features include SoundGuard technology which protects against sound levels above 118 dBA while the anti-startle technology detects and eliminates large and sudden increases in signal level. This system is optimized for Unified Communications (UC) such as instant messaging and video conferencing.