Does this specific Wal-Mart have any headphones with a mic with good enough quality for cheap??

They have some letter okay quality I believe I paid $10 for them that was around Christmas time though so you'll have to check in for availability

Yes they do.

Very selective choice. Always understocked in all departments.

Wr got some for my granddaughter teenager and she liked them.

They should. U could call electronics to verify.