There is no time limit. According to the official understanding of vivo, vivo hopes to establish a good brand image by providing long-term preferential education policies, so that consumers can think that vivo is a brand that attaches importance to education and supports students. Moreover, the competition in the mobile phone market is fierce, and major brands are vying for the market share of young users. Providing long-term educational preferential policies can attract more student users to choose vivo mobile phones and increase market share.