Cold Wallet EviVault.M in Rugged NFC Tag size save up to 32 records, such as cryptocurrency keys, recovery phrases or login credentials. In addition, EviVault.M is a password manager and allows you to automatically authenticate to your favourite internet websites securely. A high level of security with multi factors authentication (MFA) is embedded in all our products. You just need an Android smartphone or tablet with the NFC technology, an EviVault product and the EviToken Android app. EviVault products work batteryless and are guaranteed for life.