cellphone batteries, but unlike those used in the other handheld machines I've experienced, these do not quickly fail. The gearing and other parts of this machine are also very robust, given the price. It is constructed to disassemble easily for the cleaning. Where I thought this might be a consumable lasting a month or two, it gives the impression it will stick around much longer than that. Read LessRead less about There are all sorts of male

essfully, after this first successful test. Read LessRead less about This is the first masturbator I've

the light show is an added feature that I could take it or leave it. The inside tube is made from a nice soft silicone and has little "fingers" that rub as they roll around. Now as far as does it work? Yes!!! If you follow the instructions and use a little water based lube this is an experience in itself. Clean up is a breeze as you can remove the inner sleeve and wash it very fast and easy. This is great with a partner or solo. Read LessRead less about It's big. That was my first reaction