Logitech K811 Easy-switch Bluetooth Keyboard is fast, reliable connection allows you to move and type on the keyboard anywhere within 30 feet (9 meters) of your devices. Type easily in low light and even in the dark. Back lighting ensures the keys always easy to read in any light, even if you use the keyboard in the bedroom or in the living room in front of the TV. Only the key characters are illuminated, so you see just what you need to see without distraction. The illumination automatically adjusts to suit the light conditions in the room. You can also manually adjust the brightness of the illumination using the F5 and F6 keys. A motion sensor detects your hands as they approach the keyboard and turns the backlight on/off to help you save power when you are not typing. The minimalist, cable-free design takes up much less space on your desk than a full-size keyboard. It also means you can easily bring the keyboard into the living room to use with Apple TV, and take it wherever you go with your Mac, iPad or iPhone. The real aluminum finish was designed to perfectly complement your Mac and the familiar layout features all the keys you’ve come to expect—command, brightness, mission control keys and more. With sleek lines and low-profile keys, this slim keyboard will be a stylish addition to your workspace and living room. Forget about changing batteries, easily recharge the keyboard with the convenient USB cable and continue to work. You can enjoy up to a year of power, depending on the intensity of illumination and time spent typing. The On/Off switch on the right side panel helps you conserve power when the keyboard is not in use. There is also a battery indicator light which turns red when you need to power up and green when the keyboard is charging. Type comfortably thanks to the unique Logitech keycap design. The concave key surface complements the natural profile of your fingertips and helps you better locate each key for an improved typing experience. The key edges are also softly rounded so your fingertips glide smoothly from key to key. The perfect stroke key system distributes typing force evenly across the key surfaces making every keystroke quiet, natural and fluid, even if you strike the edge of a key.