Lenovo Professional Wireless Keyboard - Japanese (4X30H56862) Thank you for viewing. This is a professional keyboard that I purchased with my desktop, but I have been using an English keyboard, so I have kept it stored for nearly a year without using it. I will be selling it as I do not plan to use it in the future. Overview This is a Lenovo Professional Wireless Keyboard that pursues high quality and simplicity. It has a full-size layout with a numeric keypad. It also has media keys that allow you to control functions such as audio playback with one touch. It uses a 2.4GHz wireless system and can be easily paired with a wireless keyboard via a micro receiver. Product Specifications (Official Page) Brand: Lenovo 3-zone layout Color: Black Battery life: Up to 24 months Weight: 700 g Power consumption: 2 x AA batteries Supported OS: Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11 Width: 164 mm Height: 20 mm Length: 164 mm Depth: 450 mm Warranty period: 2 years (13 months remaining) with proof of purchase Key style: Low Profile, island-style keys Tilt adjustment: Supported Weight (Kg): 0.7 kg Connection type: 2.4GHz Wireless via Nano USB receiver Water Spill Resistance: Water-resistant