Controls on top of a light bar are fine until the bar is clamped to a big panel and you have to stand up to reach it. The wireless models in this range move control to where you actually are: a desk remote, a wireless dial, or radar sensing that reacts to whether you are sitting there at all.
"Wireless" here means wireless control. Every model still runs from a single USB Type-C connection to your monitor, laptop, dock or power bank, and every model keeps the asymmetric optical path that keeps light off the screen and on the desk.
Comparing with the wired versions? The full monitor light bar range lists every model side by side, and the monitor light bar vs desk lamp guide covers the alternatives.