The Plantronics CS500 XD Wireless Headset Series was designed to address wireless density issues , so that more wireless headsets can be used in the same space while maintaining clear conversations. Using 900 MHz technology, the CS500 XD Series provides up to 350 feet of range. Plantronics
Plantronics CS540 XD Series Headset:900MHz wireless technologyHands-free up to 350'Extraordinary sound qualityPlantronics Wireless Headset has a hot swappable battery
