... computers, MP3, MP4, iPod, and play. 1,Pictures of mini speaker with usb 2,Products details.1, Small and cute; other digital devices can ... be used with notebook computers, desktop computers, MP3, MP4, iPod, and play. 2,plastic meterial 3,red4, SNR : ≥80dB 5,specification: the ... main box: 102*H108*D102(mm) Deputy box : W102*H108*D102(mm) mini speaker with usb