HP POLY CS540-XD 7E2J7AA#ABA Convertible Wireless Headset 88283-01

Poly Plantronics 88283-01 CS540-XD Convertible Wireless Headset Designed for extreme density environments, the CS540 XD features 900MHz technology that allows you to deploy more wireless headsets in a specified space. Convertible headset, on ear or over the head wearing style! Choose narrow or wideband professional grade audio quality --  narrowband to extend talk time or wideband mode to enable clearer conversations. Extended boom and noise-canceling microphone filter out background noise, so listeners can hear conversations with clearly and enhanced Digital Signal Processing (DSP) provides more natural sound, delivering clear audio, just like being there One-touch call answer/end, vol+/-, and mute, manage calls from up to 350 feet from the charging base. CS540XD also enables you to conference in up to three additional XD Series headsets for easier collaboration and guest headsets can subscribe to a base by simply docking the headset. Adaptive power system optimizes for range and talk time by automatically downshifting to low power when the headset is close to the base to save battery life -that's efficient technology! Use with a Plantronics Electronic Hook Switch Cable or Handset Lifter to remotely answer/end calls. (SOLD SEPARATELY)  CS540 XD Series Product Sheet EHS GUIDE