Vibration function / 2 AAA batteries (included)]##Ergonomically designed anal vibrator for stimulating and developing the prostate and perineum! #The smooth insertion and best fit due to the bead shape that gets thicker and thicker, and the vibrations are transmitted firmly to stimulate the prostate gland. #The body is made of medical grade silicone for a comfortable insertion and feel. #10 patterns of vibration#● Remote control and main body are jacked together and the main body can be washed with water.