AKG SST4500 Reference wireless in-ear monitoring stereo transmitter, SST4500 IEM is a reference wireless in-ear monitoring stereo transmitter for live applications and professional installations. An integrated dbx compressor, different EQ settings, and the unique binaural room simulation algorithms provide outstanding audio performance. Its frequency preset banks support TV-channels and ensure easy and reliable frequency coordination. The radio output power can be set to 10, 20, 50 and 100mW (country-dependent). Optimized radio output power is important when the in-ear monitor system is used together with a wireless microphone system. The optional network remote control allows frequency coordination and monitoring via PC software System Architect, iPhone/iPad/iPod or via Soundcraft Vi consoles. A complete line of accessories allows you to set up an absolutely reliable system with a large covering area.