INSTANTLY FAMILIAR. SIMPLY ADVANCED. The MK540 Advanced is an instantly familiar wireless keyboard and mouse combo built for precision, comfort, and reliability. The full-size keyboard features a familiar key shape, size, and feeling ? and the contoured and ambidextrous mouse has been designed to fit comfortably into either palm. PLUG AND PLAY WIRELESS COMBOConnect your keyboard and mouse with one tiny Logitech Unifying? USB receiver. You?ll get a reliable ? and encrypted ? wireless connection up to 10 meters away with virtually no delays or dropouts. FAMILIAR TYPING EXPERIENCEThe keys have been optimized for improved accuracy and reduced noise ? and your fingers will immediately feel at home on the familiar key surface and layout. The palm rest and adjustable tilt legs keep you comfortable for long stretches at the desk. CONTOURED COMFORT MOUSEThe wireless mouse?s contoured shape and soft rubber side grips are designed to fit comfortably in either your right or left palm ? and enhanced tracking and precise cursor control keep you in command. PRODUCTIVITY AT YOUR FINGERTIPSConvenient and essential hot keys give you direct access to media, calculator and battery check functions. Preset Fn keys can even be personalized in Logitech Options to meet your specific needs. RELIABLE AND HASSLE-FREEYour keyboard won?t require new batteries for 36 months and your mouse stays powered for 18 months. The keyboard is spill resistant to 60ml of liquid and abrasion resistant key printing ensures your keys won?t quickly fade. KeyboardKeyboard key switch MembraneUSB hub NoFingerprint reader NoSpill resistant up to 60 mlNumber of height positions 3Angle adjustment (min) 4°Angle adjustment (max) 8°Frequency band 2.4 GHzPurpose UniversalRecommended usage UniversalKeyboard style StraightKeyboard form factor StandardKeyboard layout QWERTYHot keys YesWrist rest YesWindows keys YesPointing device NoNumeric keypad YesKeyboard language UK EnglishFull-size keyboard YesConnectivity technology WirelessAdjustable keyboard height YesDevice interface RF WirelessPorts & interfacesFrequency band 2.4 GHzWireless range 10 mDesignProduct colour Black,WhiteProtection features Spill resistantKeyboard style StraightBacklight NoSurface coloration MonotoneWrist rest YesLED indicators YesFull-size keyboard YesBattery LED indicator YesAdjustable keyboard height YesTechnical detailsPlug and Play YesProduct colour Black,WhiteProtection features Spill resistantBacklight NoSurface coloration MonotoneWindows keys YesScrolling directions VerticalNumeric keypad YesNumber of scroll wheels 1LED indicators YesConnectivity technology WirelessBattery LED indicator YesForm factor AmbidextrousErgonomicsPlug and Play YesWireless range 10 mLED indicators YesBattery LED indicator YesReceiverWireless receiver interface USBUnifying receiver YesPowerPower source type BatteryBattery technology AlkalineMouse battery type AANumber of batteries (mouse) 1Keyboard battery type AANumber of batteries (keyboard) 2MouseForm factor AmbidextrousOn/off switch YesButtons type Pressed buttonsMovement detection technology OpticalButtons quantity 3Scroll YesScroll type WheelMouse battery type AANumber of batteries (mouse) 1Scrolling directions VerticalRubber grips YesNumber of scroll wheels 1Mouse included YesSystem requirementsWindows operating systems supported Windows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 Pro,Windows 10 Pro x64,Windows 7,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 7 x64,Windows 8,Windows 8 Enterprise,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64Packaging contentReceiver included YesBatteries included YesUser guide YesWeight & dimensionsMouse weight 73.5 gMouse dimensions (WxDxH) 61.8 x 111.5 x 39.2 mmKeyboard weight 805 gKeyboard dimensions (WxDxH) 457.3 x 193.5 x 24 mmPackaging dataWireless receiver interface USBReceiver included YesBatteries included YesPackage weight 1.33 kgUser guide YesUnifying receiver YesPackage width 201 mmPackage type BoxPackage height 74 mmPackage depth 472 mm