[Professional noise-cancelling earplugs for a comfortable night's sleep. Shaped earplugs. The special-shaped earplugs can adapt to different ear canals of each person to achieve a good fit that will not affect your feeling of use. [For better isolation of the noise, please clean the ear canal with a cotton swab or towel first, then remove the shaped earplug, divide the earplug into two halves, squeeze the earplug into a strip, squeeze the earplug with your index finger and insert it into the ear canal to fill it. The shaping is complete and the noise is protected. [Not only are they suitable for different ear canals, but compared to sponge earplugs, molded earplugs are smoother and do not become swollen or sore after a certain period of wearing. They remain very comfortable and offer good sound insulation after long periods of use. [Comfortable] Designed with comfort in mind, the geometry was scanned in three dimensions and, from this data , a pea-sized earplug has been created that is soft and comfortable, conforming to the contours of the upper part of the ear. It can be used in libraries, during sleep and in some noisy environments.