Bơm lên

Took a couple weeks to notice the difference, but the squeeze control really does add a new layer to my routine. It's simple to use, no fuss, and the sensation payoff is worth the patience.

I was skeptical at first because it looks so simple, but that squeeze really does build intensity the longer you hold it. Been using it during my lunch breaks and it's absurdly easy to work into a routine—definitely sticking with this one.