Keychron low-profile, JIS layout, wired/wireless (Bluetooth), Win/Mac compatible, RGB light Model number: K1SEB1-JIS Hot-swappable, 2.4Ghz wireless not supported I don't remember when I got it. I think I bought it on Mercari as a spare. It has been stored unused. I pressed all the keys for this listing, and there don't seem to be any problems. However, there are risks associated with it being used, so please be aware of that. The box has a dent. It seems all the accessories are included.