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Sharing earphones with a friend is a very common habbit among people; but there, people can not share music with more than two people. Outloud is a earphone set that can turn into speakers. Compared to earphones, the spider and the surround in the speakers are let free to vibrate to give out bass sounds. When the rubber shell of outloud is concave, the spider and the surround are pressed into the driver to limit their vibration in a reasonable amount. When the user bends the elastic cover backwards, it becomes covex, letting the spider and the surround vibrate, and triggering a switch that turns the volume up.