usb lastest mini speaker * Support U-disk TF SD card * with FM * ... audio-in function, as laptop speaker. • 4.With earphone audio-out, can connect earphone or other audio device. • 5.External rechargeable Lithium ... laptop speaker, mobile phone speaker, etc. • 6.With earphone audio-out, can connect earphone or other audio device. • 7.TF card slot ... *29.5*30.5cmN.W.13.5KGSG.W.14KGS usb lastest mini speaker