Check the listing for details. Plantronics CS540-XD Wireless Headset (88283-01) Renewed, Grade A. Color: Black, Condition: Used. Listed at 59.95 USD. The Plantronics CS540 XD Wireless Headset is designed to address wireless density issues so that more wireless headsets can be used in environments already accommodating many DECT (1.9 Ghz) wireless headsets. By using 900 MHz technology, the CS540 XD ensures that more wireless headsets can be used while maintaining clear conversations. The CS540 XD can easily be converted from a comfortable over-the-head style (headband) to an inconspicuous over-the-ear style (earloops and eartips). It also offers an optional neckband for a behind-the-neck wearing style. The CS540 XD is compatible with a multitude of desk phones and offers one-touch remote call control through an additional Electronic Hook Switch (EHS) cord or handset lifter. Condition --------- ---Our Grade A products are remanufactured to a high quality, factory like new condition.