These are good units, i got 2 of them.
The transmitter is simple to use and feels sturdy.
Didn't have any issues the signal is strong across longer distances even thru walls.
The only thing i don't like is the rubbery antenna on the receiver, it came partly off of one, so i had to glue it in place.
The sound is ok, you can't expect it to be as it was wired, there is a hiss at all times on both units, i guess this is normal and it's not too distracting, also there is a roll off in the lower frequencies.
The headphones that came with it are kinda bad, i replaced them right away.
All in all a good entry level in ear wireless.