Asus VG289Q1A 28" 16:9 4K IPS TUF Gaming Monitor - Manual (Page 5)

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WARNING
Usage of other than specified head- or earphones can result in hearing
loss due to excessive sound pressures.
Please confirm the distribution system in building installation shall provide
the circuit breaker rated 120/240V, 20A (maximum).
If provided with a 3-pin attachment plug on the power cord, plug the cord
into a grounded (earthed) 3-pin outlet. Do not disable the power cord
grounding pin, for example, by attaching a 2-pin adapter. The grounding
pin is an important safety feature.