The NGRAVE Zero is a fully offline hardware wallet made of military-grade, tamper-proof material. It features an EAL7-secure OS, the highest possible security certification in the world.
The ZERO does not rely on any network capability or connection, allowing you to generate your keys, receive transactions, sign transactions, and manage your accounts fully offline. Your private keys never risk exposure.
The ZERO communicates through QR codes with the NGRAVE LIQUID mobile app, giving you a real-time overview of all of your accounts.
You can read more about the ZERO here.