Physical Security. Your seed words are stored on a chip that is specifically designed to secure secrets. You can open-source all code and compile it yourself. Only hardware wallet that can be used without being connected to a computer for full operation, from transaction signing to seed generation. Natively uses PSBT (BIP174). The full-sized numeric keypad makes it easy and quick to enter your PIN. Simple packaging, plain design, no fancy boxes, no redundant cables. Bright, 128x64 pixel OLED screen. All the important details of your transactions are displayed. A real crypto security chip. Your private key is stored on a dedicated security chip and not in the main micro's flash. Lovingly soldered in Toronto Canada. Secure supply chain verification with: tamper evident numbered bag, with device number recorded. MicroSD card slot for data backup and storage. This allows offline signing by transferring unsigned/signed transactions to sneakernet.