Plantronics CS540-XD Earset - Mono - Wireless - 350 ft - Over-the-ear - Monaural - Outer-ear - Noise Cancelling Microphone MORE HEADSETS, MORE WIRELESS FREEDOM. 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, and includes a convertible headset with a hot swappable battery (CS545-XD) for unlimited talk time.
Features
Over-the-ear earpiece design cradles the ears giving you the confidence to move around
Boom mic lets you chat with your friends & family on Skype and on multiplayer network games
Sit comfortably anywhere in your room as the CS540-XD offers wireless range of up to 350 ft
Listen to your tape recordings or use them when listening to telephone calls on Skype with these mono sound Earset