They’ve been good-but-not-great wireless earbuds; lovely to use for iOS users, but never quite reaching the sonic heights established by the top noise-cancelling earbuds in this crowded and popular category. Unlike most Bluetooth headphones, the Stax Spirit S3 sounds fantastic in wired or wireless mode. For many audio fans, https://www.youtube.com/watch?v=yq-E92r-iOE