I wrote some days ago in Twitter, that i purchased some Ultimate Ears super.fi 4vi as my old original iPhone phones. This was a little bit tricky, as i wanted headphones with an integrated mic for telephone calls. Now i used them for a few day and it´s time for a recommendation. These headphones are excellent. Good sound, good bass. I suspect, that the users complaining about a weak bass weren´t able to seal the ear with the ear pieces. In-ear headphones need to seal the ear to get good bass.
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