Portable mini Speaker 1.Portable Speaker 2.can use the USB,SD,MMC card with MP3,MP4,Mobile,FM 3.frequency87.5-117MHZ. plastic rechargeable of USB Mini Speaker 1.SD/MMC/USB/Alarm clock/LCD/FM 2.Good sound and wooden material mini 3.mini speaker plastic rechargeable of USB Mini SpeakerWelcome to visit our product!Technical details:Output power:3W+2WFrequency Response:87.5-117KHzLoud Speaker:2inch; ...