The Big O vibrating cock ring features a two-function motor and a stretchy and firm erection band that keeps him harder longer. Press the button once for 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! Features - Two-function motor with steady-on please mode and multi-pulse tease mode - Pleasure ticklers for enhanced sensations - Stretchy, comfortable erection ring Additional Information - Reusable - Replaceable AG10 batteries last 60+ minutes - SEBS silicone - Latex- and phthalate-free - Wireless - Waterproof