Light Up Hat - BASS Takes 1 AAA Battery. Lasts 12 Hours Per Set of Batteries. Battery Pack is tucked inside of the hat. The BASS Logo is outlined with eletroluminescent wire, giving it a very bright glow. Has 3 Modes: On, Off, and Blinking. This is a one of a kind gift for the holidays! 30 Day Warranty. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!