Design and features:Although this portable ear-insert model lacks active noise reduction, the ear plug-like design helps to reduce both outside noise and sound leaking out into your environment. The earphones have high sensitivity so they can provide satisfying volume levels when used with lower-powered portable audio devices. The NE750M has an integrated microphone and player function controls 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 use a cable with a 4-contact mini-plug works with most mobile devices but may not be compatible with some other audio equipment. This model comes with six pairs of ear pieces in various sizes, a removable shirt clip, and a carrying case.
Sound quality: We found the NE750M delivers sound quality that falls in the very good range - it reproduces music and voice very well although it does have some noticeable sonic quirks. The overall sound can best be summarized as bassy, full, and mellow. The 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 somewhat soft and dark - there is an opaqueness that covers up fine detail. The treble (cymbals, the upper range of violins, etc.) is a bit recessed and smeared -- sounds that should have a delicate shimmer sound blurred. While the sound has a decent 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 problems, but they produce a sense of pressure in the ear opening that might be uncomfortable for some.