RTS IFB-325 Portable Single Channel IFB User Station with 1/4" earset jack

Portable Single-Channel IFB Beltpack with ¼ (6.3 mm) Jack.
Listen only single channel IFB earset station. Provides a mono (either interrupt or non/interrupt selected at 4010) audio signal to the user. Can be used on a standard RTS-TW intercom line as a listen only station. Features volume control in an extruded aluminum case. The IFB-325 can also be used with the MCE-325 as a basic IFB system.