KT-1255 Unearthed while organizing. I don't remember when I bought it, but based on the manufacturing year, I think it was around 2015-2017. I think I only used it occasionally back then. Upon testing for the listing, the TrackPoint (pointer, mouse buttons, etc.) was not recognized. Key input was confirmed to work on Windows 11 and macOS 26 (with standard drivers?). Also, it's BT3.0, so the receiver needs to be a good one for proper recognition. (Please note that there is no USB wired connection function. USB is for charging only) I don't know about the battery life. I didn't use it much, so I think it might last about a day, but... Please understand that I am not responsible for poor battery life. I cleaned it lightly, but there is dust in hard-to-reach places. Also, there is white staining on the pointer rubber. There are stains on the spacebar. There are scratches and scuffs on the back. Overall, I think the external condition is good, but I've marked it as "has scratches and dirt" considering the TrackPoint not being recognized. For those who just want a working keyboard... There is no original box or USB cable. It will be wrapped in bubble wrap and shipped via Yu-Packet Post. Connection type: Wireless (Bluetooth) Keyboard layout: English