Tcl's 6-series combines stunning 4k hdr and mini-led technology in a bold, brushed metal design for a superior tv experience. quantum dot technology and the hdr pro pack with dolby vision combine for greater brightness and contrast, as well as a full palette of rich colors. tcl's contrast control zone technology optimizes the image across individual zones to yield striking contrast between light and dark areas. the 6-series models' aipq engine use machine-learning algorithms optimize color, contrast and clarity for an unrivaled 4k hdr experience. easy voice control lets you control your entertainment using just your voice.