Logitech K400 Plus Wireless Keyboard with Touchpad & Entertainment Media Keys Tiny USB Unifying receiver for HTPC connected TVs Designed for laid-back control Integrated wireless keyboard with touchpad 10-meter (33-foot) wireless range Media-friendly TV keyboard You are instantly comfortable using the K400 Plus. Layout is designed for relaxed media interaction. Easy-access volume controls and arrow keys. Second left-click button lets you navigate and make selections with two hands. Shortcuts for Windows® and Android™ users. Hot keys work right from the box; no configuration Plug-and-play setup 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 software 18-month battery life You might forget this keyboard needs batteries. Virtually eliminates the hassle of replacing batteries. 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. 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™. Customizable control Use K400 Plus right from the box, or personalize key and touchpad settings with Logitech Options™ software. System Requirements OS/Platform Support Windows® 7, Windows 8, Windows 10 or later Android™ 5.0 or later Chrome OS™ USB port Dimensions SEE VISUAL Overall Height: 139.9 mm (5.5 in) Width: 354.3 mm (14.0 in) Depth: 23.5 mm (1.0 in) Weight: 390g (with batteries) Touchpad Height: 76 mm (3.0 in ) Width: 47 mm (2.0 in) Warranty Information 1-Year Limited Hardware Warranty Package Contents Wireless Touch Keyboard Unifying receiver 2 AA batteries (pre-installed) User documentation Technical Specifications