Silicone Kegel System. Discreet and compact personal massager. Intense incremental speed control. Rechargeable Lithium Ion battery. Complete charge in 2.5 hours. Unscented non-porous hypoallergenic. Virtually seamless Satin Finish Silicone. Auto on and off button with LED indicator light. Security travel lock function. Clean before and after each use with soap and warm water or toy cleaner.