Design and features:These earphones have high sensitivity so they can provide satisfying volume levels when used with lower-powered portable audio devices. This model comes with ten pairs of ear pieces in various types and sizes, a detachable 49-inch audio cable, and a carrying case.
Sound quality: We found the am Pro10 delivers sound quality that falls in the fair range, meaning that it has sonic shortcomings that leave a lot to be desired when listening to music but don't rule it out for dialog and communication. The overall sound can best be summarized as thin and somewhat harsh. Bass (as in bass drums, bass guitars, stand-up bass, etc.) has good detail and decent impact, but is subdued and deep bass is lacking. The midrange (voices, guitars, horns, etc.) is thin, somewhat congested (think sonic traffic jam), constricted (as in straightjacketed) and harsh, and has a noticeable plastic resonance (something like what you would hear if you talked into a semi-rigid plastic cup). The treble (cymbals, the upper range of violins, etc.) is extended, but subdued, thin, and sizzly (sounds that should have a delicate shimmer have a sound reminiscent of bacon frying). While the sound has a good sense of liveliness it is somewhat closed-in -- sound-wise it is somewhat obvious that you have something plugging up your ears.
Comfort: We found that it takes a bit of fumbling to get the ear pieces seated and the earhooks in place but once this is done and the earhooks are adjusted the ear pieces they stay in place with no problem and are very stable even with vigorous head movement. As typical of in-ear models these earphones produce sense of pressure in the opening might be uncomfortable for some.