The Plantronics CS520 Wireless Binaural DECT Headset forms part of the new Plantronics CS500™ Series & sets a new standard for wireless desk phone communications providing audio quality for noisy environments. They offer hands-free productivity up to 120 metre away from your desk, & 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 wideb&, professional-grade audio to enable clearer conversations. Experience outstanding, wideband audio quality, & style like never before. CAT-iq wideb&, DSP & a host of other advanced audio features deliver crystal clear, natural vocie call clarity. The noise cancelling microphone reduces background noiswe interruptions, ensuring great audio quality & easier listening fatigue 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 headsets Ideal 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. Features Hands-free mobility to enable easier multitasking Wireless range of up to 120 metre Remotely answer & terminate calls when used with electronic hookswitch or handlifter Volume & mute audio controls at your fingertips Adaptive power system delivers longer talk & standby times