If you stick a USB or MicroSD into the slots under the hatch, it’ll play without a Bluetooth connection or AUX cable. It is a quality headset with good sound. There are so many fake Samsung headsets here at Amazon and I am sad to see that Amazon let counterfeit items, especially from oversea sellers. Roll on Summer Premetto che vengo da auricolari Bose che ancora sto piangendo, data la loro dipartita dopo 5 anni di intenso ed onesto lavoro. Cambridge Audio basically fixed all the shortcomings of the already fantastic Melomania 1 with these ear monitors. Silly mistake but can happen . its built in pre-amp & antiskating issues. Again they fit just like the original they do the job they didnt hear sound but again theres not a lot you can say about them they are just a replacement might cover they work good they seem to have great quality probably have them for a long time might even have that headset died before I get them all used but thats about all I can say about that Like many warmer, thumpier headphones between $150-$500, these are very forgiving of whatever source/dac/amp you use, so I never feel the need to use a specialized dac/amp with these.