... SD \ MMC card, USB card; 2.Intelligent Remote Operating System, allows you to easily control; SpecificationsProduct ListQTYPower output, left ... 240V,50/60Hz Introduction of digital audio products cartoon1,Touch-sensitive control system, touch their ears; can control the volume ... clever ... can play MP3, WMA format music3,Intelligent Remote Operating System, allows you to easily control, the freedom to ...