HP 650 Wireless Keyboard and Mouse

Connection Type 2.4 GHz wireless connection Wireless Range Up to 32.81 ft in open area Keyboard Type Full size; 3-zone layout Keys Structure Plunger; 2.0 mm; Low profile key travel Battery 2 x AAA (keyboard); 2 x AAA (mouse) Battery life Up to 24 months (mouse); Up to 20 months (keyboard, LEDs off)