Logitech MK850 PERFORMANCE Wireless Keyboard Mouse Set XZ

specificationkeyboard: High x width x depth:25 mm x 430 mm x 210 mmWeight: 733 grams (including 2 AAA batteries)mouse: High x width x depth:45 mm x 74 mm x 115 mmWeight: 135g (including 1 AA battery)System Requirementskeyboard Unifying ™Windows® 10 or later, Windows 8,Windows 7Mac OS X 10.10 or laterChrome OS ™BluetoothWindows 10 or later, Windows 8Mac OS X 10.10 or laterIOS 5 or laterChrome OSAndroid ™ 5.0 or latermouse Unifying ™Windows 10 or later, Windows 8, Windows 7Mac OS X 10.10 or laterChrome OSBluetoothWindows 10 or later, Windows 8Mac OS X 10.10 or laterChrome OSUSB port, Internet connection for downloading software.Technical specificationskeyboard Connection type: Bluetooth ™ Smart and 2.4GHz wireless connectionWireless range: 10 meters ** The wireless reception range varies depending on the working environment and the computer settings.Wireless encryption: Yes ** Wireless encryption between the keyboard and the connected computer or mobile device.Battery details: 2 AAA batteriesBattery life: 36 months ** Keyboard battery life is based on 2 million hits per year in the office environment. Battery life varies according to user and calculation conditions.mouse Connection type: Bluetooth smart and 2.4GHz wireless connectionWireless range: 10 meters ** The wireless reception range varies depending on the working environment and the computer settings.Battery details: 1 AA batteryBattery life: 24 months ** Battery life varies according to user and calculation conditions.Sensor technology: Logitech advanced optical tracking technologySensor resolution: 1000 dpiRoller: fastNumber of keys: 8Product packaging contentwireless keyboardwireless mouseUnifying ™ ReceiverKeyboard using two AAA batteries, the mouse used in a AA battery (pre-installed)USB range extension lineUser documentation