RTS BP-325 is a wired (Party Line) intercom beltpack, powered by PS-20 power station from the same manufacturer via an XLR3, this same XLR also carrying 2 simultaneous round-trip communication channels.
A female XLR5 connector is provided for a stereo headset, while another female XLR4 connector is for a mono headset.
Jumper switches inside the device allow many configurations, including fugitive mode of the two communication buttons. Two rotary faders provide independent control of the volume of both channels.
It is possible to chain several BP-325 units together.