1. Mics Dual microphones 5. Plus"+"/ Input If the OSD menu is on, press to navigateforward through the OSD menu and increaseadjustment levels.If the OSD menu is inactive, press to activatethe source button that chooses the videosignal input (VGA, DVI, or DisplayPort).2. Webcam Integrated 720p webcam 6. Minus "-"/VolumeIf the OSD menu is on, press to navigatebackward through the OSD menu anddecrease adjustment levels.Adjust volume levels.3. Power/Power LEDTurns the monitor on or off.LED:fully powered = white;sleep mode = amber;sleep timer mode = flashing amber.7. Menu Opens, selects or exits the OSD menu.4. OK/Auto If the OSD menu is on, press to select thehighlighted menu item. If the OSD menu isinactive, press to activate the autoadjustment feature to optimize the screenimage.QuickSpecs HP EliteDisplay E221c 21.5-inch Webcam LED BacklitMonitorOverviewDA - 14664 North America — Version 2 — September 4, 2013 Page 1