Make sure each transmitter is set to a different channels
one · two · three
Plug cables into transmitter and into your audio source (I-Phone)
Plug the power supply into the transmitter.
Turn on headset and select channel (1, 2, 3)
GruvLink uses the top of the class equipment. However, like all headphone technology, there are some simple guidelines to achieving the best sound quality at your next event or party.