Godox VING V850II Li-Ion Flash Kit - Manual (Page 21)

FCC Warning
Any Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate
the equipment.
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set
forth for an uncontrolled environment. This transmitter must not be
co-located or operating in conjunction with any other antenna or
transmitter.