portable mini speaker False color screen: 28*28mm Full-format audio decoder Support U disk, SD card, Mini SD, TF card, USB Portable mini speakerFull-format audio decoderSupport U disk, SD card, Mini SD, TF card, USBU.S. SRS surround sound audio, Superior sound qualitySupport Language English/Chinese 24 LanguagesBuilt-in RTC,Clock,alarm display,Calendar and Radio functionBuilt-in audio switch ...