Plantronics convertible headset - Lightest DECT wireless headset on the market - Choice of up to three* comfortable, customizable wearing styles - Elegant magnetic headset docking - Gain mobility - multitask, hands-free up to 350 feet - 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 - Advanced wideband audio using CAT-iq technology for high definition voice quality - Voice-dedicated DECT technology eliminates Wi-Fi interference - Noise-canceling microphone reduces background noise interruptions - Enhanced Digital Signal Processing (DSP) provides more natural voice sounds - CS540