Plantronics CS540 Convertible Wireless Headset

(Desk Phones Only)
Part # CS540

Product Description

Plantronics CS540 Convertible Wireless Headset System
Plantronics legendary CS family is setting a new wireless standard for desk phone communication with the CS500™ Series, which features the lightest DECT™ headset on the market, a new streamlined design and improved performance. Go mobile and multi-task up to 350 feet (100 meters) from your desk with answer, end and mute controls at your fingertips. And no matter what your preference, with three wearing choices there’s one to match your personal style. Enjoy the sleek contemporary design of the new system, premium wideband audio quality and wireless mobility, all with the same reliability for hands-free productivity that has made the CS family a best seller for nearly a decade. With the new CS500 Series we are raising the bar once again for desk phone headset systems.  When you're away from your desk, you're still in touch to think and talk on your feet, either answering or ending a call with the touch of a button with the optional Handset Lifter.

Product Features

  • Gain mobility - multitask, hands-free up to 350 feet (100 meters)
  • Choice of up to three customizable wearing styles: over-the-ear, over-the-head, behind-the-neck (*behind-the-neck neck band sold separately*)
  • One-touch call answer/end, vol +/-, mute and flash controls
  • Energy efficient adaptive power system optimizes for range and talk time
  • Conference in up to three additional CS500 or Savi headsets for enhanced collaboration
  • New headsets can subscribe to a base by simply docking the headset
  • Use with Electronic Hookswitch Cable or Handset Lifter to remotely answer/end calls
  • Voice-dedicated DECT™ 6.0 technology eliminates Wi-Fi interference
  • Lightest DECT™ wireless headset on the market
  • Elegant magnetic headset docking
  • Advanced wideband audio using CAT-iq technology for high definition voice quality
  • Noise-canceling microphone reduces background noise interruptions
  • Enhanced Digital Signal Processing (DSP) provides more natural voice sounds


  • Talk Time ~ 7 hours
  • Standby Time ~ 40 hours
  • Weight: 21 grams
  • Manufacturer Part# 84693-01

Included Parts

  • CS540 Headset with pre-installed battery, eartip and earloop
  • Headband
  • CS 540 Base
  • Power Supply
  • 1 Other size eartip and 2 earloops
  • Telephone interface cable
  • Fit Kit instruction card

Hook Switch Cables

  • For many Avaya, Cisco, Polycom, and Alcatel phones, you can purchase an Electronic Hook Switch (EHS) Cable that allows you to answer / end calls by pressing the button on the headset.  This is extremely helpful when you are multitasking away from your desk. 
    Click here to see if an EHS cable is available for your phone.

Product Documentation


All major corded desk phones