The ELECOM "TK-FDM105MBK" is a wireless compact keyboard and mouse set. ◎ Overview - 2.4GHz wireless keyboard and mouse set (Easy connection, just plug the dongle into the USB port. No troublesome installation required) - JIS standard Japanese layout (92 keys) - Compact, tenkeyless design saves space - Membrane key switches with a deep stroke (approx. 3.5mm) - Long battery life design (uses one AA battery each for the keyboard and mouse) - Keyboard: Approximately 4 years - Mouse: Approximately 2 years (when using alkaline batteries) ◎ Keyboard Features ・ Layout and Typing Feel - JIS standard layout, easy to get used to, ideal for general Japanese input - Large Enter key, independent keys for Delete/Insert, etc. - 19mm key pitch for easy typing, standard size - Membrane key switches - Rubber dome support - Deep stroke for a solid touch ・ Durability - Laser-etched characters that are difficult to erase - 10 million keystroke durability ・ Other - Power switch and battery level indicator - Angle adjustment stand ◎ Included Mouse Features - Symmetrical design that suits any grip - 1600 count optical sensor, sufficient for general use - Operates on one AA battery ◎ Connection Method - USB receiver (2.4GHz) → Keyboard and mouse can be used immediately by simply plugging it into your PC ◎ Recommended for those who: - Want to use a tenkeyless keyboard to have more desk space - Want an affordable and reliable Japanese layout keyboard - Prefer a membrane keyboard with a solid typing feel, not too light - Want to get a keyboard and mouse set - Suitable for "secondary machines," "workstation keyboards," and "testing keyboards." ※ Condition ・ There are no operational problems with any of the keys or the mouse. (Used for about one and a half years) ・ Used as a secondary machine in a store I was running until November 21st of this year. The keyboard was mainly used for the "Return" and "arrow" keys. The mouse was used with a certain frequency, but not to an extent that would exceed its durability. ・ I think it's in relatively good condition because it was covered when not in use. ・ Two new AA batteries are included.