STAMINA MASTER packs a punch, as it heats to body temperature (98F) giving you a better than life feel. Ideal for those looking for a MAXTASY experience on the go, and those who want to try something new, STAMINA MASTER allows you to be in full control of your own pleasure. The deeper you go in, the more pressure inner walls create and you achieve a higher level of stimulation. Great for any experience level! Last longer in bed!Perfect for stamina training and edging10 rumbling vibration patterns90 minutes running time penis cross fit trainingHeats to body temperature 98FRechargeableSplash-proof