Keyboard dimensions 420 x 130 x 28 mm, weight 390 g Mouse: 3 buttons, 1000 dpi resolution; dimensions 99 x 62 x 35 mm, weight 55 g Working distance: up to 10 m Mouse batteries: 2 x AAA battery, 3 VDC up to 6.6 mA current comsumption Keyboard batteries: 1 g