This easy to use vibrating clitoral pump with two interchangeable silicone sleeves has multi-speed options to find just the right speed for pleasure! Uses two AAA batteries not included. The Berman Center Accessories Collection was designed by women for women to give you and your partner exactly what you need to optimize your sex life. Dr. Laura Berman, along with a team of clinicians have worked with thousands of women through the years and listened to what they want and need. This line is designed around that feedback and is focused on what works for women. Pleasing ergonomic designs, discreet packaging, quiet devices, and clear instructions for use are all hallmarks of the Berman Center Intimate Accessories. They also feel like exploring your own body is a key first step in empowering yourself, and your partner, and overall improvement of your sex life!