Here's a bit of trivia. Rock Star Tina is named after the infamous singer performer, Tina Turner. I absolutely love the vibration speeds. Even the lowest level is great. I truly would love Tina if it wasn't so loud. The noise does interfere with the most wonderful pleasure I can experience despite the fact that I don't need to be careful of them being overheard. Oh Rock Star Tina, you can rock my world anytime, anywhere, always.