... , portable speaker, multimedia speaker, computer speaker, speaker box support USB/SD/MMC card New product mini speaker with sd card ... signal suport/MP3(SD/U disk)/FM direct switch2,Built-large-capacity lithium batteries3,support USB,SD,MMC card mp3 player songs ... Lithium own ower supply,computer USB power supply,DC power supply7,remote control functions.8,support radio functions. 9,product size 150 ...