... . 3. High quality. 4,CE,FCC 2.1 Multimedia Speaker with USB Reader Functions:1. Multi-media Speaker.2. Color selectable.3. OEM service coud ... power: 5W,4onmIsolation:45dBAFrequency response: 100Hz-20KHzSensitivity: 500MV±50MVSNR:≥70dBDistortion:≤0.3%Applicable toLaptop,digital music player,PC,mobile phone,MP3 ...