Communicate in style and unmatched comfort with the Plantronics?? CS70 Wireless Office Headset System. Ideal for on-the-move office executives, the CS70 boasts a lightweight, over-the-ear design that combines sophisticated style with all-day wearing comfort. Whether moving between meetings, conferring with colleagues, or taking calls in offices, executives can use the CS70 to go wherever business takes them???up to 300 feet from their desk phone. Leading-edge, voice-dedicated DECT 6.0 technology provides best-in-class audio quality, digitally-secure communications, and the lowest probability of interference with other wireless devices. The discreet Voice Tube delivers superior audio clarity.