Spark LINK XLR TX (Transmitter) comes with the up arrow symbol (^) and a black ring at the end of the XLR jack.
It should be plugged into your microphone or XLR output on the
instrument.
Spark LINK XLR RX (Receiver) comes with the up arrow symbol (∨) and a golden ring at the end of the XLR jack.
It should be plugged into your amp/audio interface/console.
When Spark LINK XLR TX & RX are paired, the LED status will change to a solid Green/Yellow/Red light (Depending on the battery status).
The LED indicator on the Spark LINK XLR TX starts blinking when it's in mute mode.