A wallet from Block, nostr:npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m company. The hardware component is part of a multisig setup, with your phone holding a second, and block holding the 3rd.

The theory is it will make it easier for people to hold their own BTC, while minimizing some issues, like key storage, and recovery.