Logitech MK540 Wireless keyboard and mouse

Product Overview
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.
Features
• Wireless Keyboard K540
• Wireless Mouse M310
• Logitech Unifying™ receiver
• 3 AA alkaline batteries (pre-installed)
• User documentation
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