* The SIEM-111 System features reliable JTS UHF PLL technology.

* There are 961 selectable UHF channels available. As many as 16 sets of SIEM-111T transmitters can operate on the same stage.

* The system offers 4 groups, with each group having 16 compatible preset channels to choose from. This allows the monitor engineer to set up systems quickly and easily.

* MPX Stereo Audio Transmission / Reception, switchable to Mono operation if desired.

* All metal case construction on the SIEM 111R and SIEM 111T

* The JTS advanced circuitry assures outstanding signal-to-noise ratio.

* IE-1 and IE-6 earphones seal off the ear canal with JTS designed Dyna-Driver ear buds which reduce undesired stage noise, ambient sound levels.

* 3 pairs of different sized Silicon sleeves included with the IE series earphones ensure a right fit for the users ear canal and comfort

Please note that no earphones are included with the SIEM 111R as standard.