This is a Keychron K4 with red switches. It's a US layout keyboard with Bluetooth & USB-C connectivity. I think it has the best typing feel and sound among mechanical keyboards. I also have a Realforce electrostatic capacitive keyboard, but this is just as good. It has a number pad but is the same size as a tenkeyless keyboard, which has helped me make my workspace more compact, and I've found it very useful. It has RGB lighting, which also increases my motivation when working. Overall, it's a well-made keyboard. I haven't used it much, so there's almost no shine on the keycaps. Please note that the USB-C cable is not included. [Quoted from the following site] The K4/96% layout (US 100-key) wireless mechanical keyboard with a number pad has a compact design that provides the best productivity and an excellent typing experience. It can connect to up to 3 devices via Bluetooth and easily switch between them. Equipped with a reliable and widely compatible Broadcom Bluetooth 5.1 chipset, the K4 is ideal for use at home, in the office, or for light gaming while connected to smartphones, laptops, and iPads. [Wired or Wireless] You can connect to up to 3 devices via Bluetooth and easily switch between them. Equipped with a reliable and widely compatible Broadcom Bluetooth 5.1 chipset, the K4 is ideal for use at home, in the office, or for light gaming while connected to smartphones, laptops, and iPads. It also, of course, has a USB Type-C wired mode. [With Number Pad] The US 100-key (96%) layout, with a well-considered placement of the number pad and Del key, makes it easy to access frequently used keys on Mac and Windows and can be used in a small space. *NumLock only works on Windows. Product Name: Keychron K4 V2 Simultaneous Connections: 3 devices Connection Method: Bluetooth, Wireless, Wired Supported OS: Mac, Windows Included Accessories: Everything included at the time of purchase, such as the box. #Keychron #Realforce #HHKB #Logicool #Razer #Corsair #ASUS