Viofo A129 User manual

For Camera
To comply with FCC RF exposure compliance requirements, this grant
is applicable to only mobile configurations. The antennas used for this
transmitter must be installed to provide a separation distance of at
least 20cm from all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter.
For Remote control
The device has been evaluated to meet general RF exposure
requirement. The device can be used in portable exposure condition
without restriction.