Standard size 102-key wireless keyboard with 3-button wireless optical mouse 102-key QWERTY keyboard layout with membrane key switches provide a smooth and tactile typing experience that touch typists prefer 8 hot-keys provide quick and easy access to internet, mail, and multimedia functions Optical scrolling mouse with 3-button control and 2-level adjustable optical resolution (1000/1600 DPI) supports smooth and precise movements Spill resistant keyboard with 5 drain holes withstands water spills Ultra compact 2.4GHz USB wireless receiver allows up to 33ft wireless range (line-of-sight) for both keyboard and mouse Built-in USB wireless receiver storage compartment offers easy storage and mobility while on-the-go Folding posts provide tilt angle adjustment for comfortable typing position