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It is a kind of music earplug, typically for swimmer. Let them have a desirable melody experience while taking exercise. The white soft material plays a role in protecting the users` ears.
And the metal outer skin is totally- enclosed, so it has a significant effect of waterproofness. The touch screen affords a series of music player `s operation, such as turning on or off, adjusting the volume and cutting songs.
Hu Nan University
Zhang Haolin Cai Zhiwen Ding Kebi Xu Jiayang