Not really convinced, but Amazon congratulations

After buying a 10RBT, my son bought the 1RN.
Given the difference in quality, sharper and more dynamic, I decided to take the same but bluetooth.
The tests found on the internet still calling it superior to wired.
What was my disappointment, the sound is muffled, Bluetooth easy answers, worse than the 10RBT, and it heats the left ear after little time listening.
My pleasure is not at the rendezvous and increased weight makes it less pleasant when we move.
Back to Amazon to whom I put 5 stars for its extraordinarily effective return policy.
For me it's a real plus with competitor websites would be guided.
There, we just sent has already repaid when to for a certain period of 1 month to 1 1/2 months.