Tangem is a technology company specializing in the development of hardware solutions for cryptocurrency storage and management. Their flagship product is a secure hardware wallet designed as a smart card, which enables users to store and manage their digital assets safely. These cards leverage NFC (Near Field Communication) technology, allowing for convenient and secure transactions without the need for batteries or cables. Tangem's products aim to provide enhanced security through physical separation of cryptocurrency keys from online environments, thereby minimizing the risk of hacks and theft.