Membrane Key Layout: 104-Key US LayoutnConnection: 2.4GHz Radio Frequency Wireless Technology with 30ft working rangenBattery: (2) AAA, IncludednIndicators: Num Lock, Caps Lock u0026amp; Low BatterynWindows Hotkeys: 12 (Home, Back, Forward, Refresh, Search, Favorites, Sleep, Wake Up, Power Off, Calculator, My Computer, Music u0026amp; Email )nMultimedia Hotkeys: 7 (Play/Pause, Previous Track, Next Track, Volume Up, Volume Down, Mute u0026amp; Eject)nThis is an aftermarket of generic partn2.4GHz Radio Frequency Wireless Technology With 2.4GHz RF wireless technology you can enjoy working at any angle and at distance of up to 30 ft.nErgonomic Design The design of this keyboard with split key zones and gently sloped shape encourages natural position of hands, wrists, and forearm in maximum comfort for long use.nQuiet Membrane Key Switches Membrane key switches provide a better tactile response and a quieter typing experience. Plus they last up to five million keystrokes.nInternet u0026amp; Multimedia Keys Get instant access to your commonly used Internet and multimedia tools with the 20 built-in hotkeys this keyboard has to offer.nBattery Saving Use the battery saving on/off power switch on the base of device to extend battery life and reduce the need to change batteries.nThe Adesso True-Form Media 1500 Wireless Ergonomic Keyboard u0026 Mouse offer users two advanced input devices with ergonomic design, multifunctional features and a wireless range of up to 30 feet. The design of this keyboard with the split key zones and sloped shape is made for the natural position of hands, wrists, and forearm in maximum comfort and long use. The included wireless laser mouse also provide comfortable ergonomic design and is equipped with a switch for DPI resolution adjustment (800/ 1200/ 1600) and two Internet navigation buttons.