The Nexus Simul8 is one unit that can do many delicious things for you. The system has 2 cock rings, a stimulator for the perineum and a prostate massager. You can experience 48 pleasure combinations you can access via buttons conveniently located at the bottom of the unit. The powerful motors will run for about 10 hours on a full charge and you can recharge the unit via the USB/magnetic charging cable. Because it is also waterproof, you can take it to wet areas.