Perixx PERIDUO-717 Keyboard and Mouse Bundle SetPERIDUO-717 combo-set comes with a full-size keyboard and an optical mouse. With 2.4 GHz wireless technology to provide strong and interruption-free typing experience. The keyboard comes with big print Keyboard: Dimension: 17.32 in (440 mm) x 5.10 in (129 mm) x 1.22 in (31 mm) Weight: 0.99 lb (450 g) Big Letter Print Keys Plug & Play Mouse: Dimension: 4.33 x 2.64 x 1.14 inches Weight: 0.18 lb (82 g) 1200 Maximum DPI System Requirements: Windows 7, 8, 10 and above, USB Port Connection: Wireless Attention: Please note that you have to plug in the receiver first and then enter the batteries to connect the keyboard combo successfully to your computer.