Logitech wireless keyboard and mouse (Logitech) MK540 Combo Black, Splashproof, Union Comfortable Palm Rest MK520 MK540 upgrade

DimensionSKEYBORD Height x Width x Depth: 0.94 in (24 mm) x 18.0 in (457.3 mm) x 7.62 in (193.5 mm). Weight: 1.77 LB (805 g) W/O Batteriesmouse Height x Width: 1.54 in (39.2 mm ) x 2.43 in (61.8 mm) x 4.40 in (111.5 mm). Weight: 2.60 oz (73.5g) W/O Batteries, W/O Receiversystem RequirementScompatible with: Windows® 10 Order 8, Windows 7, Chrome OS ™ Technical Specificationsmk540 Advanced Wireless Keyboard K540: 2 X AA Alkaline Batteries (Pre-Installed) Wireless M310: 1 x AA ALKALINE BATERY (Pre-Installed) Battery Weonth 36-MONTH KYATH KATH KATH KATETATH Lifefamiliar Key Shape and Feel, Whisper- Quiet3 Tilt Positions (Natural, 4 °, and 8 °) Spill Resistant Designabrasion Resistant Key Printadvanced 2.4GHz Wireless Wireless Encryptiontiny USB Receiver Witch Une APS Lock Indicator Lightbattery Indicator Lightmouse 18-Montth Mouse Battery LifeContoured Shape with Soft Rubber Gripsfull-Size and Ambidextrousadvanced Optical Tracking3 Buttons, Scroll Wheelon/Off Power Switchapackage CONTSWIRESS KeyBoard K540wirech Unif civilization Batteries (Pre-Installed)