It really does work!  Please view the video.  It demonstrates the microphone, radio, volume control, and station tuning with Snoopy's arm moving to point to the station being selected.  

It's a radio, a sing-a-long, and a P.A. system all in one.  Great fun for kids back in the 70's.  Includes microphone with built-in volume control and 10-foot cord.  Everything comes packaged in the original box including instructions.  Snoopy is still white!

PLEASE BE AWARE that one of the battery connectors in loose so I inserted a piece of styrofoam in the battery compartment to keep it tight (see photo).  I am also including a new 9-volt battery so you'll be able to see how it works right away.  (If it doesn't work right away for you, it may be due to jostling during transit.  Make sure everything is tight in the battery compartment.)

Box is dinged a little on the corner. There's a photo for that too.  

Please let me know if you have questions or would like to see additional photos.