... 3G/WLAN available,POP roling c 22inch HD digital WIFI advertising display screen with rolling caption/split screen display1. digital LCD screen ... card.7. automatic power-on/off,rolling caption,time display,playlists,vertica/horizontal screen,time and volume functions etc...Can ... Internet bars, beauty shops, golf course. 22inch HD digital WIFI advertising display screen with rolling caption/split screen ...