Windows 7, Windows 8, Windows 10 or later Chrome OSTM Linux kernel 2.6+ USB portKeyboard Height: 137.5 mm (5.41 in) Width: 435.5 mm (17.15 in) Depth: 20.5 mm (0.81 in) Weight: 475 g (1.05 lb) with 2x AAA battery Weight: 425 g (15.0 oz) without batteryMouse Height: 97.7 mm (3.85 in) Width: 61.5 mm (2.42 in) Depth: 35.2 mm (1.39 in) Weight: 70.5 g (2.49 oz)Nano Receiver Height: 18.7 mm (0.74 in) Width: 14.4 mm (0.57 in) Depth: 6.6 mm (0.24 in) Weight: 2.0 g (0.07 oz)Connection Type: Logitech non-unifying protocol (2.4GHz) with Nano USB receiver Wireless Range: 10 meters / 33 feet Wireless encryption: 128-bit Advanced Encryption Standard (AES) between devices and receiver Software Support: Logitech SetPoint Logitech MK235 Wireless Keyboard and Mouse Combo GreyFamiliar keyboard layoutNo learning curve involved. You will enjoy the comfort and simplicity of a traditional full-size keyboard layout from day one. Long battery lifeType upto three years between battery changes and use your mouse for up to a year before replacing the battery.The three year battery life prediction is based on approximately two million keystrokes per year in an office environment. Like all batteries, your experience may vary based on the use and computing conditions. Built to lastDurable construction with sturdy tilt legs and spill-resistant design. Anti-fading treatment on each key so you never worry about losing the letters from your keys. Reliable wirelessSimply plug the tiny USB receiver and enjoy a strong connection with no lag time. Your wireless keyboard and mouse will still be connected up to 10 meters (33 ft) away.While environmental conditions may cause the wireless range to vary slightly, you will always have the connection you need. Product information Technical DetailsBrandLogitechColourGreyItem Weight689 gPackage Dimensions52.2 x 33.8 x 4 cmBatteries:1 A batteries required.Item model numberMK235System RequirementsWindows® 7, Windows 8, Windows 10 or later Chrome OS™ Linux® kernel 2.6+ USB portDimensionsKeyboardHeight: 137.5 mm (5.41 in)Width: 435.5 mm (17.15 in)Depth: 20.5 mm (0.81 in)Weight: 475 g (1.05 lb) with 2x AAA batteryWeight: 425 g (15.0 oz) without batteryMouseHeight: 97.7 mm (3.85 in)Width: 61.5 mm (2.42 in)Depth: 35.2 mm (1.39 in)Weight: 70.5 g (2.49 oz)Nano ReceiverHeight: 18.7 mm (0.74 in)Width: 14.4 mm (0.57 in)Depth: 6.6 mm (0.24 in)Weight: 2.0 g (0.07 oz)Warranty Information 1-Year Limited Hardware WarrantyPackage ContentsKeyboard Mouse Wireless receiver User Documents 2 AAA batteries for keyboard 1 AA battery for mouseTechnical SpecificationsConnection Type: Logitech non-unifying protocol (2.4GHz) with Nano USB receiverWireless Range: 10 meters / 33 feetWireless encryption: 128-bit Advanced Encryption Standard (AES) between devices and receiverSoftware Support: Logitech SetPointKeyboard Low-profile keys Adjustable keyboard heightBattery: 2 x AAABattery Life (not rechargeable): 36 monthsSpecial Keys: 15 function keys accessible through "fn" keyMouse Connect/Power: On/Off power buttonSensor technology: Advanced optical trackingBattery: 1 x AABattery Life (not rechargeable): 12 monthsPart NumberPN 920-007939