Nothing's flagship $399 Headphone 1 Pro actually have some professional features

Nothing's new 'pro' headphones feature a flat EQ, bucking the trend of custom equalizers.

Nothing's new 'pro' headphones feature a flat EQ, bucking the trend of custom equalizers.<p><img src="https://www.engadget.com/img/gallery/nothings-flagship-399-headphone-1-pro-has-a-switch-to-turn-off-its-equalizer/intro-1790677695.jpg" /></p>