TP-Link Archer TX1750U Nano User Manual page 19

Dangerous voltage
Caution, risk of electric shock
Energy efficiency Marking
Protective earth
Earth
Frame or chassis
Functional earthing
Caution, hot surface
Caution
Operator's manual
Stand-by
"ON"/"OFF" (push-push)
Fuse
Fuse is used in neutral N
RECYCLING
This product bears the selective sorting symbol for Waste electrical and
electronic equipment (WEEE). This means that this product must be handled
pursuant to European directive 2012/19/EU in order to be recycled or dismantled
to minimize its impact on the environment.
User has the choice to give his product to a competent recycling organization or
to the retailer when he buys a new electrical or electronic equipment.
Caution, avoid listening at high volume levels for long periods