Designed to stimulate the frenulum, the sensitive erogenous zone along the underside of the penis. The supple FlexFit wings wrap around and allow for a personalized fit and adjustable pressure. Add lubricant, turn on the vibration and get ready. Digital vibration modes available in 5 power levels and multiple functions. Simple intuitive controls. Made of medical-grade, platinum silicone. USB rechargeable. Runs over 15 hours on a single charge.