... computer speaker, speaker box support USB/SD/MMC card New product mini speaker with sd card LMD-L369Product mini ... direct switch2,Built-large-capacity lithium batteries3,support USB,SD,MMC card mp3 player songs.4,LED ... three power supply: Lithium own ower supply,computer USB power supply,DC power supply7,remote control functions.8 ... product size 150*150*80mm Mini Speaker USB/SD/MMC with radio sd card