HD SET TOP BOX FREEVIEW Middleware MHEG5 /freeview (UK\AU\NZ) MPEG-2 ... Ⅰ&Ⅱ,MPEG-2 AAC,MPEG-4 AAC,Dolby DigitalModeStereo, Left Mono, Right Mono,DualSampling Rate32K ,44.1K,48K or 192KHzDigital Audio OutputIEC958 ... -232 serial port, USB port(Optional), RJ45 Port HD SET TOP BOX FREEVIEW