It"s never been easier to go wireless - and sound like a pro. * Shure"s new PGX Performance Gear Wireless brings the superior sound of Shure Microphones together with innovative setup features in eight easy-to-use packages. * Durably constructed, with 12 compatible systems (multiple bands) and included carrying case, PGX Performance Gear is the perfect system for performers on the go who want worry-free performance, every time. * Automatic Transmitter Setup and Frequency Selection, Shure"s patented Audio Reference Companding, 90 Selectable frequencies across 18 MHz bandwidth, 1/4 wave antennas, Microprocessor- controlled diversity, Channel display LED, XLR and 1/4" outputs.