Primo has 5 different modes, and 5 intensities in every mode, so you have 5 x 5 = 25 selections. More ways for you to explore.Despite of Primo's small size, the motor inside of his silicone body still lives up to your strongest desires. 5 different intensities, from weak to strong, which one satisfy you the most? Primo is designed with pinhole charging port, and it's completely waterproof. Do it in the shower, in the bathtub, in your swimming pool, wherever you pleased. Primo is equipped with a heating core which can heat the vibrator up to about 38?/100.4? to provide a better satisfaction, especially during winter. Primo is made of environment friendly silicone, it past all the strict tests and reached high standard before going to the market. Primo can be used with and without the remote control. With the remote control, this will increase the interaction between you and your partner. It is more convenient to change mode and intensity by the remote control if you are using the product yourself. Primo is product that can be used for both male and female. For female, it can be used for G spot and anal stimulation. For male, this is perfect for massaging the prostate.