It is important to note, be sure to take a bluetooth adapter for your computer from a well-known manufacturer. First he took an adapter from Buro, he did not see the keyboard (maybe he got a defective one), the next day he replaced it with ASUS USB-BT500, he found the keyboard in a swing and connected it to the computer. Be sure to read the instructions, at first I poked at all the buttons and wrote down the random text bind to the number 5. And I had to reset all the settings.