LD Systems MEI 1000-TX 838 MHz, UHF Wireless In-Ear Transmitter - 9.5" stereo transmitter (MEI 1000 T), 160 switchable frequencies, up to 10 parallel systems, 838 - 862MHz frequency range, internal limiter (up to +12dB), 2x combi-inputs, headphones output, removable TNC antenna. This wireless system is only licensed for use in Germany - please enquire about countries/frequencies.