1.Expend the HDMI output and headphone interface for Wii 2.Video and audio in full digital HDMI 1080p , no transmission loss. 3.Support all Wii display modes ( Ntsc 480i,480P, pal 576i, Pl 576P). 4.No external power supply, plug and play. 5.The shape is samll and delicated, less space

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