Apple Airpods 4

Specifications:

Audio Technology    
Custom high-excursion Apple driver
Custom high dynamic range amplifier
Active Noise Cancellation
Adaptive Audio
Transparency mode
Conversation Awareness
Voice Isolation
Personalized Spatial Audio with dynamic head tracking
Adaptive EQ
Vent system for pressure equalization

Sensors    
Dual beamforming microphones
Inward-facing microphone
Optical in-ear sensor
Motion-detecting accelerometer
Speech-detecting accelerometer

Chip    
H2 headphone chip

Dust, Sweat, and Water Resistant   
Dust, sweat, and water resistant (IP54)

Connectivity    
Bluetooth 5.3 wireless technology