This 10-key calculator means comfort at your fingertips. The look and sound is retro (down to the authentic clicking sound). Use it alone or plug it into your computer with the enclosed USB cable. Compatible for Windows or MAC. Designer Ippei Matsumoto studied at Tama Art University and London's Royal College of Art before joining Industrial Facility in 2003. Created for I.D.E.A. Japan. Available in Black, White and Red.