Wireless keyboard series logitech k series keyboard layout fr french interface bluetooth 30 design flat compatible operating systems windows 7 windows 8 mac os x chrome os android apple tv microsoft windows 10 number of keys 79 extra keys onoff switch power supply batteries 2 x aaa housing material plastic colour blue range 10 m length 124 mm width 124 mm height 16 mm weight 423 g included in delivery batteries user manual