1.TF card mini speaker with recahrgeable battery 2.Small size, good sound 3.With EQ and repeat ... , MP4, CD, DVD, iPod, iPhone, PSP, mobile phones, computer. 5. Metal, circular design, button curved design, a variety of colors, highlights ... the modern style, make you own way. 6. Lithium battery, the computer USB, power adapter DC-5V, many ways you ...