Plantronics VOYAGER-5200-UC (206110-01) Advanced NC Bluetooth Headsets System Connectivity Technology:Wireless / Wireless Technology:Bluetooth / Wireless Operating Distance:98 ft / Sound Mode:Mono Noise Canceling:Yes / Earpiece Design:Behind-the-ear / Earpiece Type:Monaural / Microphone Design:Cheek Package Contents: Voyager 5200 UC Bluetooth Headset System, Carrying Case, / Limited Warranty:1 Year / Package Contents: Voyager 5200 UC Bluetooth Headset System / Carrying Case