We had problems at the start. The audio jack is installed incorrectly. Then we had problems with the volume control compared to the control on the computer. Finally, we had issues with the spool trying to grab onto the neck too tightly. To work really well, the loop needs to have a large shoulder width. We fixed the loop problem with a few feet of 12 gauge copper electrical wire. If he holds the loop well open, the sound comes through wonderfully. Before connecting the coil, make sure the connector is fully inserted into the computer and adjust the computer audio level to normal speaker level. Then it works great. We buy extra to surprise our friends. Then we can buy another one afterwards.
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