UIIraLITE Single headsets eclipse all other full duplex wireless for performance and convenience Self-contained, 'All in One' design eliminates headset wires and even belt worn radios Provide simultaneous talk, two way voice communication for users UItraLITE headsets feature self-contained 'All in One' design all electronics, even the battery, is installed in the headset plastics The batteries are lightweight and about the size of a book of matches They charge in about 3 hours, run for 6 hours and can be changed out in seconds