In order to officially come into force, every document in China requires a legal seal. The smart S1 helps to make this process secure. To do so, it combines a number of factors: an online declaration of consent, authentication of the user identity and a record of the stamped documents in a cloud. A built-in LED light automatically and clearly illuminates the area for the user that requires the seal. With its geometric form, the S1 seamlessly blends in with the manufacturer’s DingTalk range. Its body is deliberately smooth to enhance product safety.