The MiniBase is an Earmark innovation for team mobility. Housed within the framework of an Earmark Belt-Pak, the MiniBase allows an Earmark equipped, mobile task team to move from point to point, within a facility and retain contact with others through the plant telephone system. Battery powered, the unit functions as an independent, two channel repeater when not connected to an intercom or telephone system. Earmark manufacturers other adapters that configure the MiniBase to interface with most, popular plant intercom systems. These adapters are self-contained; no MiniBase modifications required.