Everyone knows that listening to loud music for a prolonged period of time can cause permanent hearing loss — but knowing exactly what that volume level sounds like is hard to pinpoint. I test headphones like the AirPods Pro 2 for a living and I genuinely couldn’t tell you the exact threshold between what’s reasonably loud and at what level things become dangerous.
Although it’s incredibly difficult for humans to do it, the iPhone and Apple Watch can … as long as you have the Hearing Accessibility feature enabled.
