Wireless keyboard & mouse provides next-level comfort & productivity. Oversized, cushioned palm rest & curved key frame give you enjoyable support for all-day typing. Adjustable tilt legs offer the perfect typing angle for increased comfort. Contoured design & soft rubber surface of the mouse allow it to fit comfortably in your palm. Fly through documents & web pages with hyper-fast scrolling, & type quietly & efficiently on a full-sized keyboard with carefully crafted concave keys. Multi-device technology lets you pair up to three devices & easily switch between them with the touch of a button. DuoLink allows your mouse buttons to have a different set of actions when you hold the Fn key. Logitech Flow enables cross-computer control & file sharing. Long battery life provides up to 36 months of use & your mouse can stay powered for 24 months. Connect wirelessly to your devices with the Unifying USB receiver or pair via Bluetooth low-energy technology.