DIMENSIONS Keyboard 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 batteries Mouse Height x Width x Depth: 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 receiver SYSTEM REQUIREMENTS Compatible with: Windows® 10 or later, Windows 8, Windows 7, Chrome OS™ TECHNICAL SPECIFICATIONS MK540 ADVANCED Wireless Keyboard K540: 2 x AA alkaline batteries (pre-installed) Wireless Mouse M310: 1 x AA alkaline battery (pre-installed) Battery weight: 24g / battery Keyboard 36-month keyboard battery life Familiar key shape and feel, whisper-quiet 3 tilt positions (natural, 4°, and 8°) Spill resistant design Abrasion resistant key print Advanced 2.4GHz wireless (10 meters) Wireless encryption Tiny USB receiver with Logitech Unifying™Technology On/off power switch Caps lock indicator light Battery indicator light Mouse 18-month mouse battery life Contoured shape with soft rubber grips Full-size and ambidextrous Advanced optical tracking 3 buttons, scroll wheel On/off power switch PACKAGE CONTENTS Wireless Keyboard K540 Wireless Mouse M310 Logitech Unifying™ receiver 3 AA alkaline batteries (pre-installed) User documentation