Cute, fun, and retro!
They’re on-ear, not over-ear, but they aren’t bulky at all and even fold down! I think they sound pretty great for the price point but the trade off you make is that they’re pretty leaky. I loved mine though—used them for years + went through a couple pair (but the warranty is great + worth accessing). Might be worth it to spring for models with replacement cords available cos for me, those were always what failed first.