The Shure PGXD1 Digital Series Wireless Bodypack Transmitter is for the Shure PGX Digital Series wireless systems. The PGXD1 combines the convenience of single touch remote channel setup with the reliability of 24-bit digital operation. Clean RF (Radio Frequency) performance, stable channel operation and low noise are all attributed to the PGX Digital's 24-bit / 48kHz digital operation. The bodypack transmitter is lightweight and durable, featuring a 4-pin mini microphone input. The microphone input is compatible with Shure's WL series lavaliers, headsets and instrument cables.