1 Light ,portable 2 TF card and FM radio 3 Smart and fashion design 4. Aluminium alloy shell for better sound quality Hotselling Mini Speaker Play music,with high-powered loudspeakers,long time playWith line in function,can switch-in Notebook PC,MP3,MP4,Ipnone etc..Build-in stereo FM radioBuild-in 1450mAH Li-ion battery,support long time playUsing new technology Class D,Nice acoustic ...