Shure SLX4 Wireless Receiver The SLX4 wireless receiver is a breeze to use with Automatic Frequency Selection and Automatic Transmitter Setup. With included rack hardware and detachable antennas, it is ready for immediate installation right out of the box. Shure SLX1 Bodypack Transmitter The SLX1 bodypack transmitter is designed to hold up to the most adverse conditions. Whether used with headworn, Lavalier, instrument microphones, or with guitars or basses, the Shure SLX1 is the definition of reliability. SLX Wireless Systems feature Shure's patented Audio Reference Companding for crystal-clear sound beyond the limits of conventional wireless technology. Shure WA302 Instrument Cable Features a 2.5ft. (.75m) length with 1/4" plug and 4-pin mini connector (TA4F) (supplied with instrument systems). SLX Wireless System includes: SLX1 Bodypack Transmitter, SLX4 Diversity Receiver and WA302 Instrument Cable. Shure SLX Wireless System includes: SLX1 Bodypack Transmitter, SLX4 Diversity Receiver and WA302 Instrument Cable that links a bodypack transmitter to a guitar or bass.