Microsoft Wireless 850 Keyboard and Mouse 2 AAA alkaline batteries PY9-00018

• A slimline 2.4GHz wireless keyboard with numeric keypad, just 45.7mm thick!
• Combined with an ergonomic wireless optical mouse.
• Experience wireless freedom on your desktop. 
• 5m range. 
• Includes 3 x AAA and 1 x AA batteries. 

Dimensions

• Keyboard: 486 x 162 x 45.7mm
• Mouse: 113 x 58.3 x 39.6 mm
• Transceiver: 27.6 x 15 x 6.89 mm
• Compatibility
• Interface: USB 2.0 Compatible
• Operating Systems:
• • Microsoft Windows® 8.1, Windows 8, Windows RT 8.1, Windows RT 8, and Windows 7
• • Macintosh Mac OS X v10.7-10.9
• • Android 3.2 and 4.2
• 1Advanced functionality not available with all devices and/or operating systems. See compatibility information at: microsoft.com/hardware/compatibility.
• Top-line System Requirements:
• Requires a PC that meets the requirements for and has installed one of these operating systems:
• • Windows 8.1, Windows 8, or Windows 7
• • 150 MB
• • USB
• Compatibility Logos:
• • Compatible with Microsoft Windows 8 and Windows RT
• • Mac logo
• Keyboard Localization:
• Available language sets will vary by product and sales channel. 104 key configuration: Arabic, Chinese (Simplified), Chinese (Traditional), Czech, English (Canada), English (North America), Greek, Hebrew, International English (Euro), International English (ROW), Russian, and Thai 105 key configuration: All Nordic, English (UK), French (Belgium/Azerty), French (Canada), French (France), German (Germany), German (Switzerland/Luxemburg), Hungarian, Iberian (Portuguese), Italian, Spanish (Euro), Spanish (Latin America), and Turkish 106 key configuration: Korean
• 107 key configuration: Brazilian 109 key configuration: Japanese
• Tracking Technology
• Mouse Tracking System: LED optical technology
• Imaging Rate: Dynamically adaptable to 3000 frames per second
• X-Y Resolution: 39.4p/mm
• Tracking Speed: Up to 508mm/s
• Wireless Technology
• Wireless Frequency: 2.4 GHz frequency range
• Wireless Range: 5 meters typical. Note: RF range is affected by many factors, such as nearby metallic objects and relative positioning of the mouse and receiver.
• Product Feature Performance
• QWERTY Key Life: 5,000,000 actuations per key
• Hot Key Features: Windows 8 Charms keys, Windows Start key, and Calculator
• Hot Key Life: 500,000 actuations per key
• Media Key Features: Mute, Volume -, Volume +, and Play/Pause
• Media Key Life: 500,000 actuations per key
• Typing Speed: 1000 characters per minute
• Mouse Button Features: 3 buttons including scroll wheel button
• Mobility Features: Power switch turns mouse off, conserving battery life
• Mouse On/Off Switch Life: 4,000 actuations
• Right & Left Button Life: 3,000,000 actuations at no more than 4 actuations per second
• Wheel Button Life: 250,000 actuations at no more than 4 actuations per second
• Mouse Scrolling Features: Standard vertical scrolling
• Wheel Vertical Scrolling Life:
• • 85,000 revolutions (away from user) • 300,000 revolutions (towards user)
• Storage Temperature & Humidity:
• -40 °F (-40 °C) to 140 °F (60 °C) at < 5% to 65% relative humidity (non-condensing)
• Operating Temperature & Humidity:
• 32 °F (0 °C) to 104 °F (40 °C) at <5% to 80% relative humidity (non-condensing)
• Power Requirements

Battery Type and Quantity:

• Keyboard: 2 AAA alkaline batteries (included)
• Mouse: : 2 AA alkaline batteries (included)
• Battery Life:
• Keyboard: 15 months typical
• Mouse: 8 months typical