Wired mic (3.5mm input) (Dufferin-Eglinton)

Hello, I am a librarian with ancient audio equipment at my school, mixed with modern. All the mics have expired rechargeable batteries and now nothing works, but there are mic input jacks that may take the 3.5mm kind. If you don’t need, we would love it!! It helps host big crowds in the library that otherwise has no voice amplifier.