How can I record sound, replay, and save it?

I’m hunting for an application. It should have three functions which are to record my voice, replay what it records, and save the voice into a file.

No more extra functions are needed.

Note, saving should not be required before I replay the record.

The length of my voice won’t exceed 2 mins. File type is not a concern. MP3, wav, ect are all acceptable.

Audacity is your best bet besides some of the built-in, very basic recording programs on Windows/Mac/Linux. It does everything you’ve listed and can save to a variety of files (mp3, etc).