... .sales promotion speaker 2.Built-in Li battery 3.SDcard,USB support 4.Multimedia device compatible 5 ... USB disk autoplay 2).It also with radio function 3).3.5MM regular jack, applying to, MP3/MP4, ... key 5).USB charger-built in lithium rechargeable battery,can continuously play 2-3 hours when full charged 6).display, ... Red Packaging info:1.Size of package:21.3*14.5*4.5cm2.Net weight(include accessories ...