Hero Ultimate Male Masturbator makes solo play easy with its ergonomic, hand-held design. The smooth, soft, pliable open top silicone stroker easily accommodates penises of all sizes and can be used to stimulate the testicles as well. The inside is lined with ridges and nubs to enhance the userandrsquo;s experience. To power on the primary motor, press and hold the power button directly below the silver metallic design. To power on the secondary motor which stimulates the testicles, press and hold the power button below the primary. Each motor has 10 functions; tap the power button on each motor to change the vibration pattern. To charge, insert the pin charger into the back of the stroker just below the power buttons and connect USB to a wall outlet or other power source. 10 powerful vibrations Stimulates the shaft and scrotum with dual motor vibration Ultra quiet vibrating Water resistant Phthalates free RoHS compliant Materials: Silicone / ABS Size: Length - 6.5andquot;, Diameter - 2.75andquot; Voltage - 3.7V Rechargeable Charging time: 120 mins. Usage time: 60 mins.