The HBP-2X is a full-duplex 2-channel digital partyline beltpack that can carry power and audio over a single cable. Each beltpack has the ability to select up to 2 of any 24 available channels and program feeds on the system with the ability to talk and/or listen on the selected channel.

These are in good condition, as the chassis on each has been replaced with the later variant of the design, which removes the insert from the headset XLR connector (which was prone to failure and impossible to get replacements for).