I don't have a Memory card in the phone which has the audio manager app. How do i transfer the files to my new phone?

Saga Lout

Plug the old phone to a PC or laptop and in Windows File Explorer, cut the files then paste them into a folder. Disconnect and connect the new phone to the laptop and Copy the files then paste them in to the phonne.

That means you've cleaned up the old phone and you have a backup copy in the computer.over.

It's adviseable to factory reset the old phone if you aren't going to smash it to bits.