What activity do Cornetto Commitment Rings prevent couples from undertaking?

To solidify a couple’s commitment to one another and prevent “Netflix cheating,” a company calledCornetto developed a pair of NFC bands worn around the finger that prevent either person from watching ahead in a television series without the other present. By using a mobile app, couples decide which series they want to watch together and the show will become locked unless both rings are scanned into the app. Because “love should last longer than one season,” according to the maker.