The Short Version
New open-ear earbuds weighing 6.4 grams each use dual 11.8mm drivers claimed to match a larger 16mm speaker's output.
Open-ear earbuds have always asked you to accept worse sound in exchange for hearing the world around you. These flip that trade: dual 11.8mm drivers in each earbud are claimed to match the output of a 16mm speaker, which is the size you'd normally find in a much bulkier headphone. At 6.4 grams per earbud with a nickel-titanium clip, the hardware is finally light enough to forget you're wearing it. The excuse for skipping open-ear is running out.