The Eartec HUB532 UltraLITE 5-Person HUB Intercom System includes one HUB Mini Base Station, three UltraLITE Single Remote headsets, two UltraLITE Double Remote headsets, six LX600LI lithium batteries, an 8-port charger, and a large soft-side case. It is designed to accommodate five-person crews who need to communicate wirelessly while simultaneously working with their hands. The Hub is designed to extend the range of your existing Eartec wireless system by over 1000', and moreover, to be portable; you can wear it on a belt, and thus allow your hotspot to travel with you, or place it in a single, changeable location. The UltraLITE single and dual headsets works in conjunction with the Hub for controlling the voice communication between users. They provide two-way voice communication and the microphone arm can swivel 270°.