Personally, even if I do not know in this area, this headset is a gem! I have collected, among those who hold in the ear but that made me like hell after a while, those who have the contour foam that deep fairly quickly (and here I realize how thing was the poor quality comparing with the one I have today), those who hold just over the ears and we must withdraw after a moment also because comfort is not great ( it crushes us ears and hard to bear these helmets when it happens ...). And here I am allowed to test a real gem! My husband is a fan of good sound, it always seeks the right material for listening to good music. And with this Philips headset, he was more than happy! The sound quality, listening in general and more specifically in the low, is perfect. We feel like the musicians before us. The shape follows the ears of a really gentle and pleasant way through the foam pads (a wonder our little ears, really). The shape of the helmet marries well head and still holds up, which leans his head forward, backward, it shakes, it is the best of the best. My husband wears glasses and this is the first time a child helmet in place and it did not hurt at one time. 2 We are all amazed by the overall quality. Perhaps a little something wrong at some finishes, but we really do not pay attention and they savored rather listen daily full pieces, be it jazz, electro, rock, metal, pop ... The sound is perfect!
Go a little trick that can pop, but without insisting too much either: the cable length. Convenient to play music by connecting for example on an amp or an electric guitar, but too long when the branch just on our pc.
