A:Answer Hi mickey, Thank you for your inquiry! The WH1000XM4 is not moisture resistant and it is not waterproof. If water or foreign matter enters the headset, it may result in fire or electric shock. In particular, be careful in the following cases.
When using the headset near a sink or liquid container
Be careful that the headset does not fall into a sink or container filled with water.
When using the headset in the rain or snow, or in locations with high humidity
When using the headset while you are perspiring
If you touch the headset with wet hands, or put the headset in the pocket of a damp article of clothing, the headset may get wet.
Hope this helps!
Intelligent and intuitive, the WH-1000XM4 headphones offer further improvements to our industry-leading noise cancelation, exceptional sound quality, and smart listening that adjusts to your behavior and your location. Using the Sony Headphones Connect app, Ambient Sound Control lets you adjust the volume of background sound and gives you the option to allow voices alone to be heard. Meanwhile, the Equalizer lets you customize sound levels to suit your music.
Regards,
Sam