... battery slot 3.FM,Clock,alarm SU-22 mini speaker with built in amplifier FM,clock,alarm Description:1.Mini speaker built in amplifier ... support any MP3 music from SD/MMC/USB 2.Perfect speaker for ... .5KGS20GP7,539 PCS40GP15,078 PCS40HQ18,310 PCSImage: SU-22 mini speaker with built in amplifier FM,clock,alarm