The Biddeford / Sealy TC15B3 Electric Blanket Control Controller is a sleek and efficient device designed to control the temperature of your electric blanket. With its 4-prong silver design, this controller is compatible with Biddeford Blankets products and is perfect for regulating the heat in your bedroom. The black color adds a modern touch to the room, while the electric feature ensures easy and convenient control of your blanket's warmth. Keep your nights cozy and comfortable with this reliable and high-quality blanket controller.