Details behind Apple's 'Skin-Detect Sensor' introduced with their 3rd Gen AirPods have been revealed in a new Patent - Patently Apple
AirPods 3 improvements include better in-ear detection - 9to5Mac
Buy AirPods (2nd generation) - Apple (IN)
Amazon.com: Apple AirPods Max Wireless Over-Ear Headphones. Active Noise Cancelling, Transparency Mode, Spatial Audio, Digital Crown for Volume Control. Bluetooth Headphones for iPhone - Silver : Electronics
What are these things for? : r/airpods
AirPods 2 vs. AirPods 3 Buyer's Guide: Should You Upgrade? - MacRumors