When used of this is comfortable, with good isolation from outside noise, which is very useful in noisy urban environments.
They run smoothly on Blackberry Curve 9320, tested incoming and outgoing calls, excellent sound quality (not to mention the feeling of a tin). The mini integrated volume control have been a more ergonomic and enjoyable hair, but nothing major.
To really judge their acoustic quality, I amused myself to submit to a test without mercy Hear dun demanding CD ("Livro" Caetano Veloso) on Hi-Fi amplifier with Denon PMA-655R and the CD unit function "alpha-processing" Certainly we do not find the joys quoffre excellent specialized audiophile headphones, but frankly it's not bad at all, with its balanced, dynamic, Dont forget that no basses.
To compare comparable products, the sound is sufficiently close to that of the Bose SIE2I but is far better than the Philips SHE9600, too metallic.
In summary this fully delivers on its promises, both for use as a phone to listen to the MP3.