Keyboard dimensions 460 x 165 x 25 mm, weight 450 g Mouse: 4 buttons, 1000 dpi resolution; dimensions 110 x 68 x 37 mm, weight 55 g Working distance: up to 10 m Mouse batteries: 2 x AAA battery, 3 VDC up to 6.6 mA current consumption Keyboard batteries: 1 g