Plantronics CS500 Series is setting a new standard for wireless desk phone communications. The new system features the lightest DECT headset on the market a new streamlined design improved performance and the same great reliability. They offer hands-free productivity up to 120 metre 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.