Mini box is suitable for MP3,MP4,PDA,MD,PC,IPOD,DVD,MOBILE,etc. Produce DetailsMini speaker is suitable for MP3, ... MP4,PDA,MD,PC,IPOD,DVD,MOBILE,etc.Mini speaker/speaker/speaker box Specification:1. Input voltage ... jack:3.5mm10. Power source:a (USB,b)4*AAA batteries,c)DC11. Accesory:USB line,power transformer