The GC3 is a special purpose cable for connecting instruments or line level signal sources with ¼” output jacks to the RE3-BPT bodypack transmitter. The cable is robust with an easy-to-grip ¼” plug on one end, and an industry-standard 4-pin mini plug on the other. Connects stringed instruments with passive or active pickups to the transmitter for wireless use. Connects line level signal sources to the transmitter for wireless use.