The Enhancer Vibrating Cockring from Nasstoys helps keep you harder longer and delivers 10 powerful vibration functions with dual motors! The thick, silky silicone ring may be stretched over the penis and testicles using a water-based lubricant; or larger penis owners may use as a traditional cock ring, sliding onto only the base of an erect penis. Press and hold the power button to engage both motors then press again to cycle through the functions. Clean with toy cleaner before and after each use. To charge, insert the pin charger into the ring and then connect the USB end into a power source.