This is a mint on card Flintstones 1994 Happiness Express battery operated doorbell.  The doorbell pictures Fred Flintstone at the quarry operating his work dinosaur.  There is a button on the front which when pressed, part of the Flintstones theme song plays - it does still work.  The doorbell is meant to be attached to the door either with adhesive or screws.  The batteries are replaceable.  The doorbell measures approximately 4 1/4" x 6 1/4" x 1 1/4" and it is still sealed on the original card which measures approximately 7" x 10 1/4".