1984 Hasbro GlowWorm WORKS purple striped cap hat lights vintage worm NO MUSIC

Lights up. I don't know how many minutes/hours the lightbulb inside has left. Battery compartment is clean and I put in new C batteries. Light wear to rosy cheeks. Pompom on hat tip is very worn. Tag says it's musical, but I couldn't find any part inside that plays music. Clean. No shirt. Non-smoking home.