The Plantronics 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.Manages PC, Mobile & Desk Phone CallsOne intelligent headset to manage and routes calls from PC, mobile and desk phonesHeadset to Mobile Phone Audio TransferEasily transfer audio between headset and mobile phones for in or out of the office useNoise-canceling MicrophoneNoise-canceling microphone reduces background noise interruptionsOne-touch Answer/End and Volume ControlOne-touch call answer/end, volume up and down, mute and flash controlsAutomatic UC Status UpdatesUC presence automatically updated when on a PC, mobile or desk phone callWideband Audio TechnologyAdvanced wideband audio using CAT-iq technology for high definition voice qualityEnhanced DSPEnhanced Digital Signal Processing (DSP) provides more natural voice sounds3-way connectivityConference in up to three additional headsets and guests can continue through multiple calls