... portable mini spealer. application for mobile phone, MP3, MP4, PC and other audio output devices. Mini speaker.Can be connected to the mobile phone, MP3, MP4, PC ... and other audio output devices.Speaker: OD 40mm ... G.W. / N.W.: 12.4/11.4KGS.Accessories: USB cable, audio cable. USB Mini speaker for mobile phone, MP3, MP4, PC