1)Laptop loud speaker forcomputer 2)Mini computer stereo system 3)OEM ... all kinds of digital player devices. Features: 1) 2.0 speaker for laptop, computer,mp3,mp4,mp5 palyer, ... CD,mobile phone. 2) Carry-home, plug and play 3) High-efficience ... 3W*2(1KHZ,THD10%)2) Rated Impedance:4Ω3) Circuit Current:≤800mA4) Frequency Response: 2000HZ——12KHZ5) Supply Voltage Rejection:≥48dB ...