The sound is good, very good. Very present but not too low, beautiful medium to quibble: Acute perhaps a little dry. His little compressed, the scene is well ventilated. The shape memory ear hooks are practical and comfortable. No noise due to cable. As with all ITE, the sound varies greatly depending on the position of the earpiece in the ear. The latter is very difficult to find with the M6. Once this is done, it is happiness ... Try all bits provided (but favor triflanges). Technically these intras worth less than 5 stars, these are not the Weston! But at that price do not hesitate, the 5 stars are justified.
