The smart dog door connects to a Bluetooth tag that straps to your dog’s collar. When your dog approaches, its double doors swing open to let your pet in or out of the house.

COMOMY 29.5-48.4" Baby Gate with Adjustable Cat Door,Extra Wide Metal Cat Gate for Stairs Doorways, Auto Close Dog Gate with Pet Door for House, Pressure Mounted Easy Walk Through (30" Tall, Black) ...