Plantronics W440 Savi Office Wireless PC Headset -Convertible Headset with multiple wearing options (over the head, over the ear, and behind the neck, Noise canceling microphone helps to block out your surrounding noise, Hot swappable battery - lets you change battery in the middle of the conversation so you never run out of power (additional batteries sold seperately)...
BLACKWIRE C725 Headset - The Blackwire 725 USB headset is great for keeping you focused in noisy office environments. Featuring Active Noise Canceling technology, a noise-canceling mic, and hi-fi stereo performance, the Blackwire 725 minimizes external noises while ensuring that PC-based calls and multimedia come through crystal clear...
EncorePro HW525 Headset. The EncorePro 500 Digital Series with DA90 USB audio processor and Plantronics Manager Pro is the first of its kind: a fully integrated audio and asset management solution.
The Plantronics CS500 XD Wireless Headset Series was designed to address wireless density issues , so that more wireless headsets can be used in the same space while maintaining clear conversations. Using 900 MHz technology, the CS500 XD Series provides up to 350 feet of range.