The energy levels of these emissions however are far much less than the electromagnetic energy emissions from wireless devices like for example mobile phones. Wireless LAN devices are safe for use frequency safety standards and recommendations. The use of Wireless LAN devices may be restricted in some situations or environments for example: The Manufacturer is not responsible for any radio or television interference caused by unauthorized modification of this TRENDnet TEW-421PC C1.0R Wireless Network Adapter, of the substitution or attachment.[…]