The Microsoft Comfort Curve Keyboard 3000 and Mouse are designed by ergonomic experts. The slight curve of this keyboard provides a more natural position for your wrists to help keep your wrists healthy and comfortable. This Microsoft keyboard and mouse package includes a slim, glossy black keyboard and a full-size mouse with rubber side grips that is designed to be used comfortably in either hand. The mouse is equipped with three customizable buttons. Featuring Microsoft's Comfort Curve, the keyboard in this Microsoft desktop keyboard and mouse set is designed to promote a natural wrist posture. Microsoft's Comfort Curve Keyboard 3000 and Mouse features easy-access media keys on the keyboard, while the mouse includes BlueTrack technology.