You may connect headphones to the headphone jack found next to the Line In jack of the monitor.
Location of the Line In and headphone jacks may vary by model. Check Input and output ports on page 8 for details.
4. Connect the power cable to the monitor.
Plug one end of the power cord into the socket labelled 
on the rear of the monitor. Do not connect the
other end to a power outlet just yet.
5. Connect-to and turn-on the power.
Plug the other end of the power cord into a power outlet and turn it on.
Picture may differ from product supplied for your region.
Turn on the monitor by pressing the power button on the right of the monitor.
Turn on the computer too, and follow the instructions in Getting the most from your BenQ monitor on page 15 to install the monitor software.
To extend the service life of the product, we recommend that you use your computer's power management function.
12 How to assemble your monitor hardware