Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
Resistance to sweat makes it ideal for use while doing sports.
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.
The in-ear device is ultracompact and lightweight, with little or no interference with earrings, spectacles, hats, or hairstyles. It is inserted in the ear canal itself and blocks out a lot of environmental noise. It has stronger bass tones and is unlikely to fall out of the ear.
The cable is designed to minimize tangling.
An L-shaped plug is better if the jack is on the left or right side of the device, so that the cable isn't bent, and is less likely to break when the device is in your pocket.
A coil cable offers more flexibility, as it can be further extended when in use, as well as retracted to take up less space when not in use.
Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.