... player, connect your MP3, MP4, CD, DVD, iPod, iPhone, PSP, mobile phones, computer. 5. Metal, circular design, button curved design, a variety ... , make you own way. 6. Lithium battery, the computer USB, power adapter DC-5V, many ways you can enjoy music anytime ... can change the music anytime, anywhere. Speaker function parameters: output power RMS 3W THD=10% Frequency response 150-1800Hz(±3dB) SNR ...