Why $20 is the sweet spot to test-drive open-ear audio before spending big

Why $20 is the sweet spot to test-drive open-ear audio before spending big https://www.androidpolice.com/time-to-try-something-different-with-this-open-ear-earbuds-for-20/ Why $20 is the sweet spot to test-drive open-ear audio before spending big https://www.androidpolice.com/time-to-try-something-different-with-this-open-ear-earbuds-for-20/