1, plastic leather sleeve sea cotton effect:
a、plastic leather earcap anti-skid, no ear cotton earphone is easy to fall from the ear, wear loose.
b、plastic leather earcap to prevent leakage of sound, the full enjoyment of the headphones sound
c、plastic leather earcap prevent resonance occurs between the earplug shell and bone, easing the long wearing headphones cause ear mouth discomfort.

2, plastic leather earcap don't it look inconspicuous, but can not be ignored. Some headsets bass problem is a lack of it, without an ear cotton, feel the treble is relatively high, the bass is a bit, but the sound leakage phenomenon. Plus Ear cotton after bass became reality, the sound leakage phenomenon has disappeared, high frequency is more balanced. So if the earphone bass to feel not good enough friends, listen to music you don't forget your earplugs mounted on the ear cotton, it can be for your love to add a sense of balance, to bring you a better bass performance.

3, earplugs are sound holes are small, in your ear plugs to the ears or on the outside, there is likely to be dust into the ear through these holes, diaphragm earplug is very thin, only several microns, the dust a little will make the vibration membrane vibration changes, thus affecting the quality, even cause ear damage, ear cotton can stop outside of these debris into the ear, the ear protection.