Plantronics 83543-01 Savi Office W730 Headset

Wireless headset unifies communication with your desk phone, PC and mobile phone calls. Over-the-ear headset also delivers hands-free wireless mobility up to 350′. Headset offers a noise-canceling microphone, digital sound processing and wideband PC audio support for business-class sound quality. Lifter is not included.
One intelligent headset to manage PC, mobile and desk phone calls
Hot swappable battery for unlimited talk-time (Additional battery sold separately)
Wireless freedom up to 350-Feet from your desk;64-bit encryption
One-touch call answer/end, vol +/-, mute & flash controls across devices
Lightest DECT wireless headset with noise-cancelling microphone on the market