This is an HP keyboard. I purchased it from the official website. I used it for about an hour. I mistakenly bought the US layout instead of the JP layout, and I don't think I can get used to the US layout, so I'm selling it. I will remove the batteries before shipping. (I will put them in the gap in the box) I will wrap the included box with plenty of bubble wrap and ship it via Yu-Pack. HP Keyboard Wireless Wireless English Layout US Layout HP 230 Wireless Keyboard (Model Number 3L1E7AA#UUF) Compatible with Mac Windows PC MacBook [Domestic Genuine Product] Connection type: Wireless (Bluetooth) Keyboard layout: English