The E04601 keyboard features a large L-shaped Enter key and all the Windows application keys in a new up-to-date enclosure case. The keyboard has a detachable color matching wrist rest and is bundled with an optical 2-button PS2 scroll mouse.The keyboard features Key Tronic patented Ergo Technology. While most keyboards use a standard 55 grams of force required to register every key, Ergo Technology has 5 different levels of force. From 35 grams to 80 grams - according to the strength of the finger that touches the keys. The result is more comfort for your hands.The warranty period for the mouse is 1 year.