Designed for laid-back control: PC-to-TV entertainment shouldn\'t be hard work. Kick back and navigate your TV-connected computer from the comfort of your couch!The Features of Logitech Wireless Touch Keyboard K400 Plus at a Glance:Integrated wireless keyboard with touchpad10-meter (33-foot) wireless rangePlug-and-play setup, hot keys work right from the box - no configuration required18-month battery lifeEasy-access volume controls and arrow keysSecond left-click button lets you navigate and make selections with two handsShortcuts for Windows and Android usersMedia-friendly TV keyboardEnjoy seamless control of your PC-to-TV entertainment, without the hassle and clutter of a separate keyboard and mouse. The comfortable, quiet keys and a large (3.5-inch) touchpad make navigation effortless. Watch video, browse the web, chat with friends and more, without annoying delays or dropouts. It is responsive, trouble-free connection even in large spaces.Wireless range may vary depending on operating environment and computer setup.Plug & PlayYou are instantly comfortable using the K400 Plus. Layout is designed for relaxed media interaction. Plus, setting up K400 Plus is a snap. Plug the tiny Unifying receiver into a USB port and start the fun. Use the keyboard receiver to connect up to six Unifying devices to your computer. Learn more and download Unifying software18 Month Battery LifeYou might forget this keyboard needs batteries! It virtually eliminates the hassle of replacing batteries. Plus, use the on/off switch to extend battery life even further.Battery life was independently tested for two-hour use per day. Actual battery life will vary with use, settings and environmental conditions.OS CompatibilityThe K400 Plus works with multiple operating systems, designed for use with Windows 7, Windows 8, Windows 10 and later, Android 5.0 or later, and Chrome OS. Use K400 Plus right from the box, or personalize key and touchpad settings with Logitech Options software.Logitech Wireless Touch Keyboard K400 Plus Specifications:Platform SupportWindows 7, Windows 8, Windows 10 or laterAndroid 5.0 or laterChrome OSUSB portDimensionsH x W x D139.9mm x 354.3mm x 23.5mm5.5 x 14.0 x 1.0Weight390g (with batteries)TouchpadH x W76mm x 47mm3.0 x 2.0Connection TypeLogitech Unifying protocol (2.4GHz)Special KeysMute, Volume Down, Volume UpConnect / Power: On/Off SwitchBattery InformationRequires: 2 x AABattery Life (not rechargeable): Up to 18 monthsKey lifeUp to 5 million keystrokesTyping noise: Within 55 dBA for all keysWireless range10 m / 33 ft