Duplexer can be internally installed to allow a single antenna to be used instead of two separate antennas to transmit and receive simultaneously.

Desk Microphone converts a desktop repeater into a dispatch
radio for office personnel use.

Portable Carry Case allows easy transport for use as a back-up or
emergency repeater.

Battery Revert Battery Revert Automatic back-up power allows continued use when power goes down. Also includes float maintenance charger to keep battery charged when not in use.

ZR340 Advanced Interconnect Controller provides advanced telephone interconnect capability with stored telephone numbers, access/override codes, dialing restrictions, call timers, direct-air access and Continuous Wave Identification (CWID).