I do not recommend this keyboard for purchase due to poor build quality. The cost is 8,532. Acquisition date 10/14/2022 Pros below: A winning combination of the following features: 1. wireless keyboard (like many others) 2. battery instead of batteries 3. backlight 4. Butterfly keys (combine a low profile with proper resistance) 5. the shape of the keys with a recess in the center Cons: Objectively extremely poor build quality. The first keyboard lived for 14 days, after which something fell off inside the keyboard and you could hear a piece of either plastic or part of some mechanism rolling inside the case. The supplier replaced the keyboard. The second keyboard lived for 12 days, after which the key with the letter "a" began to stick. When stuck, the key sounds significantly louder and takes time to come off. This is very annoying. Subjective factors - some may not be important to individual users. 1. In the 2022 layout, the keyboard has a shortened left shift. Between shift and the letter "i" there are characters ~`[], which are PRESENT on other keys. The meaning of this is not clear to me, and a full-sized left shift is preferable for me. 2. The backlight shines through under the keys. 3. The case is not designed to be opened by yourself. 4. There is no significant modification of the assignment of the keys.