Meets challenges: our hub improves modern workplaces by providing a communication tool that exceeds users' Expectations for multi-device usability and Premium security Multi-device connectivity: Connects to Softphone/PC, desk Phone, and mobile phone, While also optimized for major cu brands and Skype, to give you the ultimate freedom in Communication Enhanced clarity: with Super wideband sound & noise-canceling technology, This two-microphone business headset provides crisp, natural sound for crystal-clear Advanced security: This hands-free Office headset keeps all conversations confidential with 128-bit authentication and DECT security certification Fluid Conferencing: connect up to 4 wireless sennheiser headsets or wired headsets to a single 5016 base station to make Conferencing as simple as it should be Active Gard Technology: featuring patented Hearing protection to defend against acoustic shock caused by sudden sound bursts