Perixx PERIBOARD-701PLUS, Wireless Slim Keyboard with Touchpad - 2.4G - Up to 30 Ft Operating Range - 11.80"x8.26"x0.75" Dimension - 4xAAA Energizer Batteries - Silent X Type Scissor Keys RF Wireless 2.4GHz digital family keyboard Build-in touchpad Up to 10 meters interruption-free receiving distance High quality X type ultra flat scissor keys USB dongle receiver