Plantronics CS540 Wireless Headset

Lightweight wireless headset with three different wearing options. With secure DECT wireless technology, the headset can be easily converted from a comfortable over-the-head (headband) style to a more subtle over-the-ear style. It also has an optional neckband for wearing behind the neck. It is compatible with a wide range of desk phones and provides one-touch remote call control via an optional Electronic Hook Switch (EHS) cord or handset lifter. 
 Features
 * Range up to 350 feet away for maximum mobility * Up to 7 hours talk time * Premium wideband audio quality, noise-canceling microphone * One-touch call answer/end, volume up/down, mute, and flash controls * Smart power management system optimizes for range and talk time * Does not include handset lifter or EHS * Part # 84693-01