Breaking up the monotony of another day reviewing headphones, DUNU has announced the new Luna earphone.  Using the world’s first pure Beryllium earphone driver, the Luna follows the 50th anniversary of the first moon landing.

The fruit of three years of dedicated R&D, the DUNU Luna touts itself as an engineering breakthrough.
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https://majorhifi.com/worlds-first-pure-beryllium-iem-driver-new-dunu-luna-announced/