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. Primo is designed with pinhole charging port, and it\'s completely waterproof. 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 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 rechargeable.