I bought these headphones for their sound insulation used on android smartphone: - The only ambout holding my ears is that foam ... But in recent scratch somewhat (though these two points are probably a feeling that should not be the same for all) - These are the only headphones that cause problems with my old android smartphone while they are the only ones marked "compatibilté android". Since then the problem is solved with the new smartphone, but ...
In short, not bad, not expensive, but not excellent. I prefer the feel of my Sennheiser CX300 II, except that they are more fragile than Philips. a mixture of both would be excellent!
