Suited for the style conscious people, the citizen w-11s is as slim as a credit card. The gold metal face only adds to its sophisticated look and the fact that it weighs only 20 gms, makes it only easy to be carried around. The citizen w-11s runs on solar energy and would never need a battery change. Often on festive occasions such calculators are given as gifts due to which today there is a huge demand for these calculators and unitech media will always be there to satisfy this demand.