25 different frequency experiencesprimo 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?pinhole Charging, waterproof designprimo 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.constant heating function heats the vibrator up to 38 /100.4 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.environment friendly materialprimo is made of environment friendly silicone, it past all the strict tests and reached high standard before going to the market.intelligent remote controlprimo 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.product made for male and female, it can massage male's prostateprimo 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. * constant heating function heats the vibrator up to 38 /100.4 * product made for male and female, it can massage male's prostate* round and smooth design, comfortable to use at any angle* fully-covered by silicone, easy to clean and use* 25 different frequency experiences* pinhole charging, waterproof design* unique logo design, luxurious charm* environment friendly material* rechargeable* whisper quiet