The el-124twh combines a large 12-digit display with the handy + tax and - tax function in a comfortable desktop size calculator. Large 12-digit lcd display. Comfortable desktop size. Angled display for easy reading. +Tax / -tax function. Grand total function. Memory operation. Twin-power solar and battery operated (1x lr1130, included). 96.5Mm x 155mm x 24.5Mm. 12 Month warranty.