We’ve disputed before that it’s hard to put a price on piece of mind, though AKG intends to do just that. The Harman owned quality audio brand has announced a pair of active noise canceling headphones the K490 NC and K495 NC. Active noise cancellation (ANC) works using small microphones and special circuitry to cancel out unwanted outside noise; we’ve covered the technology in some detail, and invite you to read out primer on noise cancellation here.
Though we are better inclined towards the more portable in-ear variety, like the Audio-Technica ATH-ANC23, full-sized over-the-ear cans can provide better noise cancellation performance and audio quality. The K490 and K495 are both USB chargeable using integrated batteries, providing 40 hours of enjoyment. Thankfully, both will continue to pump out your tunes, even with the ANC circuit off, when the battery runs out.