Waterproof Dock Speaker (walkman)

In modern days, people are always seeking the way to use their time efficiently. But where we can find a time we can use more efficiently? ―― it may be while we are taking a bath/ cooking. We are using our eyes and body, but often do not use our ears.
By using this waterproof speaker, we can listening a news/ or informative podcast even while taking a shower/ cooking in kitchen. This product is desirable for those who seek for a good way to use their time for multiple activities.
I myself have been using this for more than 5 years, in order to practice my listening skills of foreign language while taking a bath.