Active Noise Cancellation, built-in heart rate sensing, and hybrid silicone-foam ear tips.Key FeaturesActive Noise Cancellation: Up to twice the noise reduction of AirPods Pro 2, enhanced by ultra-low-noise microphones and new foam-infused silicone ear tips.Health & Fitness: Integrated heart rate sensor to track pulse, calories, and metrics across 50 workout types.Audio & Processing: Powered by the Apple H2 chip with Voice Isolation, Personalized Spatial Audio, and an upgraded acoustic design for deeper bass.Battery Life: Provides up to 8 hours of continuous listening with ANC enabled and up to 24–32 hours total using the MagSafe (USB-C) charging case.