The Logitech MK540 Advanced is a keyboard and mouse combo designed to offer an instantly familiar yet advanced computing experience. Combining user-friendly features with advanced technology, this set provides a seamless interface for users. The keyboard features dedicated multimedia keys for quick and convenient control, and with a familiar layout, users can easily transition to this advanced setup. The mouse, equipped with an optical sensor and three buttons, complements the keyboard's functionality. The MK540 Advanced is crafted for simplicity and efficiency, making it an excellent choice for users seeking a reliable and user-friendly keyboard and mouse combination for everyday computing tasks.Logitech MK540 Advanced Includes:Wireless Keyboard K540Wireless Mouse M310Logitech Unifying™ receiver3 AA alkaline batteries (pre-installed)User documentationLogitech MK540 Advanced Features:Instantly Familiar DesignAdvanced Technology IntegrationFull-Size Keyboard with Dedicated Multimedia KeysCompact and Ergonomic DesignSpill-Resistant KeyboardHeight-Adjustable and Durable Keys2.4 GHz RF Wireless ConnectivityUp to 32.8' Wireless RangeOptical Sensor Mouse with Scroll WheelAmbidextrous Mouse Design3-Year Battery Life for Keyboard (2 x AAA Alkaline)1-Year Battery Life for Mouse (1 x AA Alkaline)On/Off Switches for Battery ConservationCompatible with Chrome OS and WindowsUSB-A Wireless Receiver IncludedLogitech MK540 Advanced Specifications:WiFi range (in meters): 33 ft (10 m) 1Wireless range may vary due to environmental and computing conditions.Keyboard:Spill-resistant design 2Tested under limited conditions (maximum of 60 ml liquid spillage). Do not immerse the keyboard in liquid.Familiar key shape and feel, whisper-quietAdjustable Height: 3 tilt positions (natural, 4°, and 8°)Special Keys: Music Controls, Programmable keysPalm RestAbrasion resistant key print10-Key Number padKey type: Deep profileOn/Off power switchCaps lock indicator lightBattery indicator light2 AA batteries (Alkaline Battery)Battery: 36 months 3Battery life may vary based on use and computing conditions.Height: 7.62 in (193.5 mm)Width: 18.00 in (457.3 mm)Depth: 0.94 in (24 mm)Weight (without batteries): 22.33 oz (633 g)Mouse:Sensor Technology: Smooth Optical TrackingNumber of Buttons: 3 (Left/Right-click, Middle click)Scrolling: line-by-lineScroll Wheel: Yes, 2D, opticalConnect/Power: On/Off power button1 AA battery (Alkaline Battery)Battery: 18 months 4Battery life may vary based on use and computing conditions.Height: 2.43 in (61.8 mm)Width: 1.54 in (39.2 mm)Depth: 0.45 in (11.5 mm)Weight: 2.59 oz (73.5 g)Customization appSupported by Logi Options+ on Windows and macOS 5Available on Windows and macOS at logitech.com/optionsplusWarranty Information1-Year Limited Hardware Warranty Logitech MK540 Advanced Wireless Keyboard and Mouse Combo.