Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
Foldable devices are easier to transport and take up less storage space.
This device comfortably rests on top of your outer ears. As it doesn't block out everything from the outside world, it's preferred in places like office environments and recommended for outdoor activities.
5.has a tangle free cable
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.