OneKey Classic 1S is a hardware wallet for storing and securing cryptocurrency assets. It features a USB Type-C connection and utilizes an EAL 6+ Security Chip (THD89 from TMC) to protect private keys and cryptocurrency assets. The device stores private keys in a separate security chip, not in the device microprocessor, and ensures the private key never touches the internet. It confirms and authorizes on-chain transactions with the signing process done on the device itself.