The Wii to HDMI converts your Wii video and audio output to full digital HDMI format. * It supports all Wii display modes including: NTSC 480i, 480p, PAL 576i automatically, and upscales them to HDMI 720P or 1080P. * The HDMI output is either 720P (default) or 1080P, please make sure your TV can support 720P or 1080P. * The extra3.5mm audio socket brings your convenience to connect headphone or speaker. So you can enjoy games in night without worrying to disturb others. * To switch between 720P and 1080P outputs, use a needle to push and hold for 1 second then release.