Discreet and easy to use, our revolutionary erection ring can be worn during sexual activity to enhance pleasure, as well as overnight, to gather objective data on your sexual health. Track your erectile health and find out your erectile fitness score TODAY! Key features of our erection tracker: Built in sensors Connects to app via bluetooth Tracks and monitors firmness and duration of all erections Counts number of nocturnal erections Designed to keep blood in the penis to prolong erections. Penoscrotal design, wraps around testicles and shaft Light pressure on urethra intensifies orgasms Can be worn for hours Uniquely comfortable. Ergonomically designed. Easy on, easy off with hook and latch. Trusted by urologists. 1 size fits most men (except above 95% in girth) 8-10 hr runtime USB rechargeable Water resistant Phthalate and latex free Compatible w/ water based lubricants