The Big O vibrating cock ring features a two-function motor and a stretchy and firm erection band that keeps him harder and longer.Press the button once for a steady and strong vibration and press one more time to tease, please and tickle with powerful multifunction pulsation.The Big O gives couples maximum stimulation with intense targeted vibration for the kind of sexual experience The Screaming O is famous for! Two-function motor with steady-on please mode and multi-pulse tease modePleasure ticklers for enhanced sensationsStretchy, comfortable erection ringReusable Replaceable AG10 batteries last 60+ minutesSEBSLatex and phthalate-freeWirelessWaterproof