The Voice’s unique selling point is that contestants aren’t judged on their appearances. The show’s judges sit facing away from the stage, and if they’re impressed by someone’s singing, they press a button that turns their chair around. If more than one judge does this, the contestant can choose who they’d prefer to be mentored by.
From here on out, it’s basically a knockout contest. In the first two rounds, acts compete head-to-head, with the judges ultimately deciding who stays. However, in the final live rounds, the audience, the public, and the judges all have a say. The winner gets a recording contract with Polydor Music.