No, the Godox SK400II is a manual studio flash. It does not support TTL (Through-The-Lens) automatic metering; power must be adjusted manually on the unit or via a remote trigger.
No, the SK400II is an AC-powered studio strobe. It must be plugged into a standard wall outlet (100-120V or 200-240V depending on the region) to operate.
It is compatible with any Godox X-series transmitter, including the X1T, X2T, and XPro. It can also be triggered via a 3.5mm sync cord or as an optical slave.