So hypothetically the Tiani clips onto you vaginally so that you can have intercourse at the same time. I say hypothetically because that's just the theory. The remote control is sensitive to motion, so the more you invert it, the more it vibrate, and it also has a mode that picks up momentum, but the remote has some pretty huge flaws. The smaller arm which is meant to hold it in place while the male member enters below is so small that it's almost impossible to keep in place, but that's okay because the vibrator hardly stays vibrating long enough for one full thrust. When the remote loses it's connection, the Tiani turns off. Said remote is supposed to be for up to 20ft, but it was inconsistent at even 2, simply closing my legs was cause for it to shut off. With no means of detecting what needed to be kept clear, the only way to use this toy is with it inserted, legs fully spread, and the remote pointing at it directly, and even then, it doesn't like to stay in. It manages to be waterproof though.