Did the keyboard for my Smart TV purchased (Panasonic TX-48AXW634 4K). Batteries pure sign - ready. Everything worked right away and completely uncomplicated. The keyboard facilitates input in search fields (eg Youtube) enormous. I do not want to miss it. The keyboard is slim and light, the format is "living room bzw- lap friendly", ca 35 x 14 cm - or about the size of a notebook keypad. A touch-sensitive mouse box with two keys adds to the keyboard function optimally.