Features of the product Calculation of the day Calculating time Calculating the Remainder Calculation of taxes Type of product Type of Mini Desk There are twelve digits. Display using liquid crystal Extra-large screen Signs for function commands Three-digit comma indicators Important traits Plastic keys Important roles Rollover of keys Use the shift key (▶). Memory Power Supply Independent Memory Battery & Solar 147 × 103 × 28.8 mm in size (D × W × H) and 115 g in weight Simple computation Simple Calculations Normal percentage () Percentage of profit margin