Specification: 

Weight: AirPods (each): 5.4 g, Wireless Charging Case: 45.6 g

Dimensions: AirPods (each): 24.0 by 21.8 by 30.9 mm, Wireless Charging Case: 45.2 by 21.7 by 60.6 mm

AirPods Sensors (each): Dual beamforming Inward-facing microphones, Dual optical sensors, Motion-detecting accelerometer, Speech-detecting accelerometer

Power and Battery: Up to 4.5 hours of listening time with a single charge (up to 5 hours with Active Noise Cancellation and Transparency off); Up to 3.5 hours of talk time with a single charge. AirPods Pro with MagSafe Charging Case: More than 24 hours of listening time, more than 18 hours of talk time, 5 minutes in the case provides around 1 hour of listening time or around 1 hour of talk time