Truly wireless earbuds were rare and expensive like, a couple months ago. Now they’re practically falling off the boats from China, and you can get a set from Mpow for $33 with code BF9K9AVW.
These don’t have many reviews yet, but Mpow has been making Bluetooth earbuds for a long time, and unlike some other truly wireless models we’ve seen, these do include a charging stand with a built-in battery (though oddly, not a charging case).