Sony has some of the best headphones in the world. The Sony WH-1000XM3, especially, is mostly known for its extreme noise cancelling ability. The headphone like most headphones of that nature uses a USB-C charger.
For some people, due to its noise-cancelling ability, Sony WH-1000XM3 is best for working out and other physical activities. Some also want to take it outdoors which puts it in danger of all sorts of spills and liquids.
Can the Sony WH-1000XM3 withstand moisture, is it waterproof? No, the Sony WH-1000XM3 is not waterproof. Even so, you may still wonder;
Are Sony WH-1000XM3 sweat resistant?
The WH-1000XM3 Wireless Noise Cancelling models are definitely not waterproof, splash-proof or intended to be used in any sort of humid condition. If water or other liquids enters, it may be damaged, and can even catch fire or shock you.
If it does fall in water or sorts, stop use immediately and consult your nearest Sony dealer. In fact, you are advised to refrain from using it in the rain or snow, or in humid/wet locations.
You are also advised to avoid using the headphones while you are sweaty because it is not sweat resistant. Sweat, wet hands or damp clothing can negatively affect the product by degrading the earpads, or directly tampering with the USB charging slot and causing damage to it.