Design and features:These earphones have medium sensitivity so they can provide satisfying volume levels when used with home audio equipment and all but the lowest-powered portable audio devices. The M7P has an inline volume control, plus an integrated microphone and music player function control that are compatible with iPads, some iPods, and some iPhones and some other cellphones. The call connect/disconnect button can be used with some iPhones and some other cellphones. These earphones may not operate properly with some non-Apple/non-Android mobile devices or other audio equipment. Additional features include a detachable 52-inch long audio cable, over-the-ear cable routing, ear insert mounts that swivel, and the manufacturer claims that it is water resistant. This model comes with four pairs of earpieces in various sizes and types, a removable shirt clip, and a carrying case.
Sound quality: We found the M7P delivers sound quality that falls in the good range: It reproduces music and voice reasonably well, despite the obvious shortcomings in its sound. The overall sound can best be summarized as bassy and a bit soft. Bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes deep, but is prominent and boomy. The midrange (voices, guitars, horns, etc.) is a bit washed-out, congested (think of a sonic traffic jam), grainy, and soft. The treble (cymbals, the upper range of violins, etc.) is extended, but the mid-treble is slightly prominent. While the sound has a good sense of liveliness it is closed-in (sound-wise, it is obvious that you have something plugging up your ears).
Comfort: We found that these earphones fit and stay in place with no problem and once the ear hooks are adjusted, the ear pieces are very stable even with vigorous head movement, but they produce a sense of pressure in the ear opening that might be uncomfortable for some.
