portable,movable,wireless with LED,fashion, mini design,convience support USB, U disk, SD,TF act as the speaker of PC portable mini speakerHottest!! Mini USB Speaker new design!!!1)Turning the volume button to adjust volume 2)Press the power switch to on/off3)support u disk, SD card,FM,MP3specification:1)RMS:2×2.5W2,2)speaker:whole tone1.5" 5W 3)Frequency Response:30HZ-20KHZ4,4)SNR:≥80dB5)Power: ...