AirPods (4th generation) feature Apple's H2 chip, delivering enhanced audio quality and personalized spatial audio with dynamic head tracking. They come in two models: a standard version and one with Active Noise Cancellation (ANC) and Transparency mode. Both models support USB-C charging and are rated IP54 for dust, sweat, and water resistance. The earbuds are lightweight at 4.3 grams each, with a redesigned compact charging case. Additional features include voice isolation and hands-free Siri interaction.