Rexing RH2-2 Quick Start Manual page 24

FCCID: 2AW5W-RH2
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.
Changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate this equipment.