Vanity by Jopen Rechargeable Vibrating Duo Balls. Ergonomically designed for the natural contours of a woman. Hi-tech squeeze me technology for intense vibrations on command, or manually as desired. Powerful independent dual motors with incremental speed controls. Instant on/off function. Easy to follow instructions included. Waterproof vibrations for play outside the bedroom. Waterproof sex toys with this designation are safe for use in the bath or shower. Do not submerge for long periods of time and take care to thoroughly dry after each use. Remove batteries after each use. Whisper quiet, discreet operation. Premium Silicone maintains and retains body heat. Unscented, non-porous, and hypoallergenic makes these Ben Wa style Balls safe for all skin types. Satin finish and virtually seamless. Sturdy retrieval cord for easy removal.. Rechargeable kegel balls comes with premium Lithium Ion battery. Security travel lock. 110/240 Volt power adapter. LED charge indicator. Powered by Power Bullet. Vibrating orgasm balls measure 3.5 inches long by 1.25 inches wide. Colors may vary. Vanity by Jopen VR1 is a registered trademark for California Exotic Novelties.