Geoffrey Fowler, writing for The Wall Street Journal, looks at the current state of truly wireless headphones:
Earin and Bragi have accomplished leaps of technology to make earbuds truly wireless. The problem is our heads. It’s not just that they’re hard; they’re full of water, which stops wireless signals dead.
Earin’s solution uses familiar tech. Made by a Swedish startup, it connects its left bud to your phone via Bluetooth. That bud then uses special antennas to bounce a second Bluetooth connection off walls and other surfaces to the right earbud to complete the stereo pair.
By all accounts they’re still not quite there yet. This is one of my dreams of earbud listening, but not until it feels like a clear win am I ready to pony up the cash.