For those nights where you Link Up, explore the Link Up Alpha. This two-piece set includes a high-powered vibrating couples' enhancer ring with 10 different functions of vibration, pulsation and escalation, and an Ultra-Soft silicone support ring. Allow the Link Up Alpha to enhance your performance with added stamina and support while the deep resonating power pleasures both partners. The vibrating, waterproof enhancer features a dual ring design for added stimulation and support. The ring is also textured to bring you to the peak of ecstasy. Play with ease as this ring is USB rechargeable. Use the included charging cord to charge your vibrating ring in just 2.5 hours. Then, maximize pleasure for you and a partner with up to 90 minutes of play time. Experience deep, resonating power with the push of a single button. Once you've found your favorite setting, enjoy getting right back to pleasure next time with the memory chip feature. The pleasurable vibrations will resume on the last function used with this innovative feature. Measurements 3.5" x 2.25" / 9cm x 5.75cm (Overall Usb Ring). 1.5" / 3.75cm inside diameter. 90 day warranty.