Whistling/Feedback EV3

If your hearing aids are producing feedback/whistling then you may want to turn down the volume.
If adjusting the volume does not help, you will want to try all of the earbud sizes, starting with the
largest and working your way down in size until you find the proper fit to prevent feedback.

If this doesn't help, please leave a message below detailing your issue and include your order number
if possible.