Built-in Touchpad - Offers full mouse control with less muscle movement for maximum comfort. Membrane Switch - 5 Million keystroke lifecycle for a quiet and fast typing experience. Integrated Palm Rest - Keeps your wrists in the most comfortable position. Desktop full size - Full size keyboard provides better typing experience. Ergonomic Contour Design - Minimizes forearm muscles from twisting and pains from Carpal Tunnel Syndrome Split Key Design - Encourages natural position of hands, wrists and forearms for maximum comfort. Multi-Media Hotkeys - Provide ease of access to some of the most used functions. 2.4 GHz RF wireless technology - With 2.4 GHz RF wireless technology and 65000 IDs on 12 channels you can enjoy 30 feet of wireless freedom.