When you strap on the HUMM DINGER TURBO. get ready for an unimaginable sexual experience! The HUMM DINGER TURBO. will undoubtably make your partner scream and beg for more! Being the first Vibrating Cock Ring in the world...gives Humm Dinger the edge...when it comes to strategic design...and product knowledge Innovation! With our vibrating ring. you can experience up to 90 minutes of erotic vibrations. longer and firmer erections. and intense orgasms! HUMM DINGER TURBO is waterproof and offers intense Vibrating pleasure. at the flick of an on/off switch!2 LR44 Batteries IncludedFeatures:Prolonged Vibrations - 40 minutesStrongest VibrationsSatisfying Ticklers For HerPerformance Knobs for HimSecure andamp; Simple On/Off SwitchSnug Yet Gentle Gel Ring