Some projectors also support high dynamic range (HDR), which is a display technology that gives your projector the ability to display a range of brightness levels, creating more vivid colors and better simulating lighting conditions in a scene. A mid- or long-range projector is preferable for primary use and daily viewing, but they take a bit more effort to set up than an ultra-short throw projector—also referred to as UST—like the we cover below. Projectors that have built-in speakers are a good choice for casual viewers who want an all-in-one machine or those that want to take a projector from room to room without having to fuss with surround sound.