I have better advice, I have tried both the Hitachi and the Wahl massager (15 bucks on amazon) and the Wahl had more intense pelvic-rumbling vibrations.. I was extremely disappointed with the Hitachi (and it's so pricey!).but then I got a We Vibe Tango and I never looked back, it is very small, discrete, QUIET (extremely important, both the hitachi and wahl are so fucking loud) and has that rumbling vibration..but the vibration is even better than the Wahl and doesn't overstimulate my clit and "numb" me like the Hitachi can - it is extremely powerful and I seriously could not believe how much I loved it, it kind of changed my life (or at least my vagina life) for the better.

The Hitachi is cumbersome, the vibrations are often too intense, you can't change the settings unless you install a dimmer switch - you have to plug it in (whereas you can just charge the We Vibe) - it is loud as fuck, I honestly think it's one of the most overrated vibrators ever

that said, I still use my Wahl - it feels amazing on my neck, my thighs, my back, EVERYWHERE - everyone would love it I think, if you hold it on your nose when you're sick it clears your sinuses in an instant and it's so satisfying (obviously...clean it) - it is an amazing piece of machinery...I highly recommend it