Poly CS540 XD Extra Density Convertible Headset TAA

Poly CS540XD Extra Density Convertible Headset TAA - Mono - Wireless - DECT - 350 ft - 20 Hz - 20 kHz - Over-the-ear, Over-the-head - Monaural - Outer-ear - Noise Cancelling Microphone - Black - TAA Compliant Poly Part#: 88283-01 HP Part#: 7E2J7AA#ABA Need a replacement Battery for your CS540? [Click here] Note: For new set-ups - order the required - APC-43 Electronic Hookswitch Cable (for Cisco phones) Part # 38350-13-N   The XD stands for Extra Density. The CS540-XD is designed for high density wireless environments, so more wireless headsets can be used in the same space without crossing frequencies and reducing call quality. With a 900 MHz frequency you get a 350 feet of range from the charging base, along with superior call management and Plantronics best-in-class audio quality, this wireless headset rocks the office. 350 foot range. Duck into different offices around the building while on call. Convertible wearing style: over-the-ear, over-the-head, or behind-the-head. Now y