Plantronics CS50 USB Wireless Microphone (900 MHz)

USB connection; over the ear fit For computer and VOIP, not compatible with traditional telephone systems Digital encryption; Up to 200 foot range Good Speech accuracy and performance Instant USB connectivity for easy compatibility and quick set-up. 200 foot range with no headset cables The first wireless with remote ring detection and call answer/end at the touch of a button, thanks to Plantronics’ PerSonoCall™ software Superior sound quality for clear, private, and completely secure calls, including noise-canceling microphone.