Rolly is a new style of music player that proposes the concept of enjoying music by looking and feeling as well as listening. The palm-sized, egg-shaped body, that has no complicated switches or wiring, incorporates horizontal opposite-positioned stereo speakers, as well as a built-in flash memory and battery, to avoid the annoyance of electric power cables and allow users to carry it around to listen to music wherever they want. Operating buttons on the main body consist only of the power switch and play button. Song selection and sound level adjustment is done by moving the unit or rotating a part of it.