The Shure PG4 Wireless Diversity Receiver can be the central component in a variety of wireless configurations for handheld, guitar, headset, and presentation applications. Shure professional audio products deliver legendary sound quality, stage-proven durability and hassle-free setup for worry-free performance. Output Impedance: XLR connector: 200 Ohms; 1/4 inch connector: 1kohms Audio Output Level Reference (±33 kHz deviation with 1 kHz tone): XLR connector (into 100K Ohms load): ”19 dBV, typical; 1/4 inch connector (into 100K Ohms load): ”5 dBV, typical Sensitivity: ”105 dBm for 12 dB SINAD, typical Image Rejection: >50 dB, typical LED Signal Indicator: Green: Normal signal strength; Amber: Strong signal; Red: Peak signal