Vibrating bikini underwear, 10 function remote control, One size fits most, Waterproof, Phthalates free, RoHS Compliant, Materials: Panty, 95% Cotten, 5% Lycra, Bullet & Remote : ABS, Bullet Length: 2.5", Diameter: 2.625", Batteries included: Remote : 1 27A, Bullet : 3 LR44