Ouch Adjustable Panty Black. This vibrating underwear by Ouch! will make you smile more than ever before. The underwear is soft and stretchy and contains a single speed bullet. Enjoy your private secret! Specifications rotations per minute 13000. 1 speed. Noise level maximum 80 dB. Batteries included. 3 AG13/LR44. Material ABS plastic. Water resistant. Phthalate free