Rare Dillards Trimmings Singing Frogs Duet only one them works

VINTAGE Dillards Trimmings Singing Frog Duet RIBBITS Christmas FROGS Condition: Good, only one works, I put Batteries in the other one but it didn't work. Both Frogs are in excellent condition as a plush , one of the is missing the cap that cover the battery, please see pictures . But they are beautiful for decorations, I am moving and downside