Siena vibrators are 100% waterproof and feature ten functions, easily controlled using the ergonomic buttons. The designs are unique and the motor is what really help you sell this product through. Turn it on and you?ll experience really strong, but almost totally silent vibrations! The Rondo is a specialist vibrator for those that love a bit of extra girth. With gentle undulating lines down the body this toy has been specifically designed to stimulate nerve endings just inside the vagina as the unit is moved in and out.