The lightest, most comfortable DECT headset Plantronics has ever made Plantronics CS540 Headset is setting a new standard for wireless desk phone communications. The new convertible headsets – the lightest DECT™ headsets on the market – feature streamlined design, improved performance, and the same great reliability. They offer hands-free productivity up to 100 meters away from your desk, and great collaboration options. Pair your headset with any base by simply docking it, or add up to three additional headset wearers into your call. Switch between narrowband audio to maximise battery life or wideband, professional-grade audio to enable clearer conversations. Experience outstanding, wideband audio quality, and style like never before.Other key features include voice-dedicated DECT technology eliminating Wi-Fi interference, advanced wideband audio using CAT-iq technology, narrowband mode to preserve talk time, wideband mode for clearer conversations, a noice cancelling microphone to filter out background noise, enhanced digital signal processing (DSP) technology to provide a more natural sounding voice with the ability to conference in up to three additional CS500 range or SAVI range headsetsIdeal for the busy fixed/hot desk office worker who needs to roam around the office. Pair the headset with a base simply by docking the headset, enabling quick set up in hot desk environments.