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 mode Pleasure ticklers for enhanced sensations Stretchy, comfortable erection ring Reusable Replaceable AG10 batteries last 60+ minutes SEBS Latex and phthalate-free Wireless Waterproof