Tampoco es de alta calidad. In listening to a cello piece for comparison (VERY deep notes), the sound is not there, arguing for maybe its only piano? Upper chords not affected. just hope they last, she tends to wear these types of shoes ragged. La piel y el sudor no se llevan bien, así que no recomiendo hacer ejercicio con estos audífonos ya que se podría maltratar. No one warned me how difficult it was for my chubby self to get into this by myself but I eventually did. Its the original sole that made me fall in love with them. No issues, great sound quality- I paid over $100 at a big box electronics store. Needed a screen to fit over the wide and super-sensitive mic on my Astro A50s. • The cable is a little short. So far I LOVE these.