Files with ap4 extension is related to the Kids&Us Talking Pen and used for its audio files.
AP4 file extension - Kids&Us Talking Pen audio
What is ap4 file? How to open ap4 files?
File type specification:
File extension ap4 is associated with the Talking Pen, an e-learning device that allows kids to learn how to pronounce English properly.
The ap4 file stores audio data for Talking Pen. They can be imported to device from computer via USB.
Updated: December 4, 2023
