Another remarkably clever Transistor radio, the Classic POLOROID 600 PLUS  AM-FM Transistor Radio looks like a pack of Poloroid 600 Plus film and it doesn't use AA or AAA batteries. It is powered by your used film pack. Once you have used all of the photos in the film pack, you just insert the used film pack in the back of the radio. It works off of the battery already included in the film pack.It has an old film pack installed now and it's been there for some time and is still playing beautifully and sounds great.