USB rechargeable reversible vibrating cock ring made of lab-tested body-safe SEBS and ABS is powered by deep. rumbling Vooom technology with 10 penetrating vibration and pulsation functions. Super-stretchy comfort fit makes it easy to wear without tight constriction. Warrior Control finger loop lets users adjust the motor. Or wear the loop as an additional cock ring for a special vibrating boost. Full charge provides 60-plus minutes of power. Waterproof.