The Mallard Machine hardwire unit has 80 feet of heavy-duty cord with switch and is light and portable, yet rough and durable. It is made of glass filled nylon that will hold up under the most extreme usage and will work off of any 12volt battery. The Mallard Machine works with all types of decoys-standard, magnum and even good decoys and will operate in any water depth! (Decoys are not included.) The Mallard Machine hardwire unit has 80 feet of heavy-duty cord with switch and is light and portable, yet rough and durable. It is made of glass filled nylon that will hold up under the most extreme usage and will work off of any 12volt battery. The Mallard Machine works with all types of decoys-standard, magnum and even good decoys and will operate in any water depth! (Decoys are not included.)