Right for 5 seconds: TVI. Singal mode: TVI / AHD / CVI / CVBS 960H. Switch from TVI: Press Rightward for 5 Seconds. Down for 5 seconds: CVI. Left for 5 seconds: AHD. 【4 mode video output】-- - 1080P AHD, 1080P CVI, 1080P TVI and CVBS.