Apple AirPods 4 with Active Noise Cancellation review TechCrunchAirPods 4 With Noise Cancellation: Your New Best Buds The Wall Street JournalFDA approves some Apple AirPods to be used as hearing aids NPRAirPods 4: The new active noise cancellation made ‘Me Espresso’ sound like it was performed in a soundproof café MashableApple AirPods 4 review: defying expectations The Verge