Elecom Wireless Keyboard Membrane Thin Full Keyboard Tenkey Black TK-FDM110TXBK Key Switch: Membrane Keyboard Arrangement: Japanese This is a thin keyboard with a key design that provides a light and crisp typing feel. The key press weight is approximately 18% lighter compared to our conventional products, allowing for key input with less force. *Compared to TK-FDM075TBK It features thin keys with a 2.5mm keystroke, enabling quick key input. The thinnest part is approximately 12.7mm, with a stylish, thin design. It adopts a standard Japanese layout compliant with JIS standards, making typing easy. Large Enter keys and special keys such as Delete and Insert, which are placed independently, make it less prone to input errors and allow for comfortable key typing. It is equipped with 12 multi-function keys that allow you to perform volume control, media player operations, and more with the press of a dedicated key. It uses a micro-receiver the size of a 1-yen coin, and is a wireless connection type that can be used immediately by simply plugging it into a USB port on your computer. The receiver can be stored on the back of the main unit. It uses one AAA battery and can be used for approximately 2 years without replacing the battery. (Operating time目安 when using alkaline batteries *This is a test value in our environment and is not a guaranteed value.) ●Condition Used at home for about 3 months. Batteries have been removed. No operational problems or noticeable scratches or stains. ●Included Items Main unit Receiver (stored on the back of the main unit) Instruction manual