Keyboard Logitech Wireless Solar Keyboard K750 (UK):Innovative Logitech Wireless Keyboard that does not need to power the battery and does not bother your user. It is powered by solar panels, which give the keyboard enough power even in the room. If the power supply is insufficient, the SolarApp application and the keyboard indicator will indicate when it will be discharged. However, this situation does not happen because the keyboard lasts for 3 months on full charge without recharging. This is an implementation with an English layout that caters primarily to programmers and computer professionalsKeyboard design is high quality and modern, it is very thin and has a laptop lift so it is comfortably written on it. Thanks to the materials you leave it harder to print. It is also easy to use thanks to its instant function after plugging into USB Plug'n'Play.Parameters and Specifications:Keyboard:Layout: classic, small EnterNotebook lift, very thinLayout:ENGWireless communication:Type: WiFi 2.4 GHzInterface:USB (Unifying receiver)Power supply:SolarTurn off sliderPower status indication on the keyboardStamina: 3 months (in the dark)Supported OS:Microsoft Windows XP, Vista, 7