Care-phone / adjustable earphone

In modern society, music become one of the most popular entertainment, especially for urban citizen to relieve their presure. However, earphone would be their regular choice to enjoy music, which might probably pose a theat to their hearing ability.
Care-phone have two different forms of changes.With simple operation, user can choose the one which is suitable for certain using context. It also help you avoiding harming by visual notifications. Care-phone proposes a healthier way of using earphone.