... for laptop,pc/mp3/4/5,moblie phone 2)Mini computer stereo system 3)OEM &low price Factory newest pc speaker .....Plastic ... ,mp3,mp4,mp5 palyer,CD,mobile phone. 2) Carry-home, plug and play 3) High-efficience Class-D professional digital vedio ... , mini stereo system Specifications:1) Output Power: 3W*2(1KHZ,THD10%)2) Rated Impedance:4Ω3) Circuit Current:≤800mA4) Frequency Response: 2000HZ——12KHZ5 ...