To extend the time， and enhance sexual vitality is the main purpose of a happy combination. Bump on the vibrating ring in direct contact with the device will vibrate against the female clitoris， so that women increase sexual stimulation to stimulate sexual activity and enjoy orgasm. Ring vibration function can help men increase their confidence and improve the stiffness and durability. Replaceable battery， there is plenty of time for sex and sex before the shock time guarantees， and afterwards to help foreplay caressing 

 

 

This product can also be individually DIY (self) use when asexual partner 

 

 

Using advanced food grade quality materials wrapped vibrators， completely harmless to humans.