With your Heated Stadium Seat cushion, you will STAY WARM and have the BEST SEAT IN THE HOUSE so you can enjoy the game as long as you like. Works with a 5V DC input Power Bank - NOT INCLUDED - simply plug in to heat up. The lightweight and multi-use cushion can be used in multiple configurations to add cushion to your bottom and support for your back. It is easily portable; when you are ready to leave, fold it like an accordion, connect the buckle, throw on the shoulder strap, and you are ready to go. Enjoy hours of comfort wherever you take it.