HIMS Braille Sense U2 User Manual page 5

FCC RF Radiation Exposure Statement:
This equipment complies with FCC RF radiation exposure limits
set forth for an uncontrolled environment. This equipment should
be installed and operated with a minimum distance of 20 cm
between the radiator and your body. This transmitter must not be
co-located or operating in conjunction with any other antenna or
transmitter.
Caution: Any changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority to
operate this equipment.