Miyoshi MCO Windows Wireless Numeric Keypad, 2.4GHz, USB-A Receiver Connection, 5 Columns x 28 Keys, Features Convenient Function Input with

Compatible OS: Windows 11, 10 (Japanese version only) Dimensions: Approx. 105mm wide x 133mm deep x 23.5mm thick, Weight: Approx. 108g (main unit only, excluding weight) Key pitch: Approx. 19mm, Key durability: Approx. 8 million times (number of times for each key) Key display/number of keys: 28 keys for Japanese Windows Power supply: 2 AAA alkaline batteries, Operating time: Approx. 360 hours