mini speaker,laptop speaker 1,DC 5V 1A 2.USB power 3.RMS:6W 4.Mini speaker for PC and notebook.Built-in active amplifier Mini speaker, ipod speaker, iphone speaker, plastic speaker, mp3 speaker, multimedia speaker,laptop speaker,USB speakerMini speaker for PC and notebookBuilt-in active amplifierPure and elegant sound qualitywith unsurpassed effectoutput:RMS 3W+3W;S/N Radio:65db Isolated;Rate: ...