Thank you for viewing. This is the S200 gold version of the S100, the ultimate Made in Japan calculator and Casio's flagship model. I purchased it overseas. It is not sold in Japan, and I bought several for gifts, but I haven't had many opportunities to use them, so I am selling them irregularly as part of a decluttering effort. The case has a luxurious feel, and the key touch is like that of a high-end computer. I hope that those who use calculators for customer service or heavy users in accounting will find it useful. Please consider it. All boxes are included, so it can be used as a gift. *Please note that it has been opened to check the operation. 【Product Features】 Multi-conversion function (set arbitrary conversion rates) Tax calculation (tax amount calculation and tax rate change possible) Tilt display Elastomer resin stopper 【Product Type】 Just type (can be held in hand or used on a desk) Digits: 12 digits 【Display】 Calculation status display: 3-digit comma display Key features: 2-color molded resin keys that do not erase numbers (excluding some keys) Concave-convex keys V-shaped gear link & thin isolation keys 【Key Functions】 Fast key input function (3-key rollover) Two zeros (00) Backspace (►) Sign change (sign switching) 【Memory】 Number of memories: 2 Grand total calculation Independent memory (M+, M-, MR, MC key method) 【Power】 T・W・P (solar and battery dual power) Battery: CR2025 x 1 Battery life: Approximately 3 years (when used for 1 hour a day) Auto power off Size (depth x width x height): 183 x 110.5 x 17.8 mm Weight: 250g #S100X-BK