Stabilized optics. Really takes the shake out, let's the rest of the lens quality shine.

I have Canon 10x30 IS stabilized binoculars, bought maybe a decade ago. Runs for many months on a battery, easy to hold and use.

Being stabilized allows you to choose a longer/higher maginification lens that would otherwise be too shakey when hand held.

I would expect a current generation model might be even better than what I have, which is already quite good.

Decent review/overview
http://garyseronik.com/review-canons-image-stabilized-binoculars/