進階吸力控制外殼

The fine-tune dial is the star here—it lets me dial in exactly the intensity I want without fumbling mid-session. Upgraded from the standard case and the extra control makes a noticeable difference.

Finally got the dial setting dialed in to exactly where I like it after a couple tries. It's way more precise than the standard case I had before, and the session feels much more tailored now.

The fine-tune dial is a game-changer—I can switch between gentle and intense mid-session without breaking the rhythm. It's noticeably more responsive than the standard version, and the case feels solid in hand. Exactly what I needed.