Sony WH-1000XM4 Wireless Noise Cancelling Headphones

Product dimension: 18.5 x 7.7 x 25.3 cm

Battery charge time: Approx. 3 Hours (Full Charge)
Battery charge method: USB
Battery life (continuous music playback time with internal memory): Max. 30 Hours (NC ON), Max. 38 Hours (NC OFF)
Battery life (waiting time): Max. 30 Hours (NC ON), Max. 200 Hours (NC OFF) 

Noise canceling on/off switch: Yes
Personal NC optimizer: Yes
Atmospheric pressure optimizing: Yes
Ambient sound mode: Yes
Quick attention: Yes 

All day power and quick charging
With a huge 30 hours of battery life, you’ll have enough power even for long trips. And if you need to top up in a hurry, you can get 5 hours’ worth of charge after just 10 minutes with the optional AC adapter.

Clearer hands-free calling
Conversation flows freely with easy, hands-free calling. Leave your phone where it is, just speak with a double tap. Thanks to Precise Voice Pickup Technology, which combines five built-in microphones with advanced audio signal processing, WH-1000XM4 delivers clearer voice quality to the other person on the phone.

The technology behind the noise cancellation
Dual noise sensor technology, featuring two microphones on each earcup, captures ambient noise and passes the data to the HD Noise Cancelling Processor QN1.

Ambient Sound Control
Adjust ambient sound with the Sony | Headphones Connect app to cancel noise while still allowing through essential sounds, like transport announcements, when you’re listening on the move.