US Patent 11687742 Two piece dual layer transaction device

A two part dual layer transaction device comprising a computerized master unit powered by rechargeable battery, the master unit capable of connecting wirelessly to a data network and accessing at least one network server, the master unit having a length, a width, and an internal volume, and a transaction card element having a form factor acceptable for use as a debit or credit card, wherein the transaction card element may be docked or otherwise coupled to the master unit in an idle state and may be uncoupled by the user for the purpose using or cleaning the card element.