What charging cable does the WH-1000XM4 use, and can I use it while it charges?

The unit uses the supplied USB Type-C cable for charging and can only be charged via USB, requiring a computer with a USB port or a USB AC adaptor. When charging, the unit cannot be turned on and the Bluetooth and noise canceling functions cannot be used. Be sure to use the supplied USB Type-C cable and never insert the USB plug when the unit or cable is wet. (Page 1)