The sound is based on the confirmation tone associated with Apple Pay, the mobile payment service Apple introduced for iPhone in 2014. Online, a louder and cleaner edit began circulating on short video platforms and soundboards under transliterated names like Epl Pei, especially among Russian speaking creators. That 2.0 label signals a remade version rather than an official release. It stayed popular because almost everyone recognises a contactless payment ding, so creators can imply a purchase, a flex or a bad financial decision in about a second without showing any money.