New in box from smoke and pet free home! bateries inserted to make sure it worked then not used. Dimensions Length: 14.80 in (375.97 mm) Width: 8.62 in (218.91 mm) Height: 1.20 in (30.53 mm) Weight (including batteries): 26.46 oz (750 g) Technical Specifications Customization app Supported by Logi Options+ App on Windows® and macOS® ? Battery Battery type: 2x AAA (included) Battery life: up to 36 months ? Compact layout with number pad Dual printed layout (Windows/Mac) Easy-Switch Keys (connect up to 3 multi-OS devices) Tilt legs (+ 4-degree) On/Off power switch Caps Lock and Battery indicator lights Compatible with Logitech Flow technology enabled mouse