LD Systems MEI One 2, UHF wireless in-ear-system - 9.5" stereo transmitter (MEI One T), bodypack receiver (MEI One BPR) and earphones. 1 fixed frequency: 864.100 MHz, 3 frequencies available, 2x combi-inputs, headphones output, requires 2x AA batteries (included), removeable TNC antenna. Includes rackmount, batteries and plastic case. No licence needed, free to use all over Europe.