I used this BT receiver on my ER4XR. Putting on real headphones was pretty easy. The receiver is small and light. Pairing was easy. The sound was ok, I definitely didn't have a "velvet" experience. However, the first thing I noticed was that the right side was louder than the left. I switched left and right to make sure it wasn't a hearing issue. It's not like this. Also, I have 2 Apples, a Quedelix and a Bose hooked up to the same transmitter. None of them have this problem. This is simply unacceptable for a BT receiver at any price. I was also expecting to get some sort of EQ control app etc. Nothing, it's just a super simple BT receiver. For a little less money, you can buy Quedelix, which offers a lot more than this. It's just not worth the money. At least not for me.
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