A refrigerator 1 includes a casing 11 including storage compartments 12, doors 13 attached to the casing 11 to expose or cover the storage compartments 12, hinges 21 connecting the doors 13 to the casing 11 and supporting the doors 13 so that the doors 13 are openable and closable, non-conductive hinge covers 22 detachably attached to the casing 11 and covering the hinges 21, and a wireless adapter 31 disposed on the hinge cover 22 and including an antenna unit 32 configured to transmit and receive radio waves.