GNN 9120 2.4Ghz Wireless Headset System without the Handset Lifter.

 

No-beltpack design for unfettered wireless freedom, Lightweight (just over 1 oz.) and easy to wear, 300-foot range unlocks your productivity potential, 2.4 GHz transmissions for top-of-the-line sound, Multi-unit conferencing capability (up to four units on one call), 8 hours of battery charge gives you a full day of talk time, 64-bit digital encryption and Spread Spectrum Technology for confident call security, Three boom styles available: Midi Boom, SoundTube Boom and Flex Boom, Converts into two convenient wearing styles: On-the-Ear and Over-the-Head