Specifications GeneralModel NameL22i-30SeriesL - SeriesColorRaven BlackDisplay54.61 cm (21.5 Inch) LCD DisplayBacklightLED Backlit BacklightPanel TypeIPS PanelResolution1920 x 1080 pixels3DNoScreen Resolution TypeFull HDSales Package1 Monitor with Stand, Power Cable, HDMI Cable, Quick Setup GuideScreen Form FactorFlat Display FeaturesNumber of Colors16.7 m ColorsMaximum Refresh Rate75 Hz (Analog), 75 Hz (Digital)Aspect Ratio16:09Contrast Ratio1000:1, 3000000:1 (Dynamic)Horizontal Viewing Angle178° (2D)Vertical Viewing Angle178° (2D)Response Time4 msBrightness250 nits (2D)Color Gamut72% NTSC Audio FeaturesSpeakersNoHeadphone JackYesInbuilt SpeakerNo ConnectivityHDMIYes, 1VGAYesAudio JacksAudio OutAudio OutYes Mounting FeaturesStandTiltWall Mounting100 x 100 mmWall Mount StandardVESA WarrantyWarranty Summary3 Years Manufacturer WarrantyCovered in WarrantyUninterrupted or Error-free Operation of a Product. Defects in Materials and Workmanship under Normal use During the Warranty Period. On-site Service Support will be Provided at the Customer's Location. Some Repairs may Need to be Completed at a Service Center. If so, the Service Provider will Send the Product to the Service Center at its Expense.Not Covered in WarrantyLoss of, or Damage to, your Data by a Product. Any Software Programs, whether Provided with the Product or Installed Subsequently. Failure or Damage Resulting from Misuse, Abuse, Accident, Modification, Unsuitable Physical or Operating Environment, Natural Disasters. Power Surges, Improper Maintenance, or Use Not in Accordance with Product Information Materials. Damage Caused by a Non-authorized Service Provider. Failure of, or Damage Caused by, Any Third Party Products, Including those that Lenovo may Provide or Integrate into the Lenovo Product at your Request. Any Technical or Other Support, Such as Assistance with "how-to" Questions and those Regarding Product Set-up and Installation. Products or Parts with an Altered Identification Label or from which the Identification Label has been Removed.