The AirPods 4 are the first from Apple to offer noise canceling, and an AirPods Pro update will feature a hearing test and OTC hearing aid functionality.

In other words, without getting too much into the weeds of things, active noise cancellation works by the device "monitoring" the outside noise and emitting an inverted soundwave, or what Treski calls "the anti phase," to neutralize or negate the external cacophony.

Designed to fit more ears and supporting noise cancellation, the AirPods 4 are a genuine surprise you won't see coming.