VTech Discovery Tree User Manual page 19

Note:
This equipment generates and uses radio frequency energy and if not
installed and used properly, that is, in strict accordance with the
manufacturer's instructions, it may cause interference to radio and
television reception. It has been type tested and found to comply within
the limits for a Class B computing device in accordance with the
specifications in Sub-part J of Part 15 FCC Rules, which are designed to
provide reasonable protection against such interference in a residential
installation. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause interference with
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient the receiving antenna
• Relocate this product with respect to the receiver
• Move this product away from the receiver
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