Pink Rhinestone Crystal Diamond lovely pattern of cartoon cat and doraemon,special and charming,fashionable to use at office,home,school etc. Percussion keyboard ergonomic design, after 100 thousand times of tapping test, not easy to bond. Two-way Power: Solar and Battery (One AA battery).12-digit Upright Display. This Cute Calculator make a great gift or collection to your hobby or interest.Cute Calculator Instruction [M+] Adds the number shown on the display to the number stored in the memory Example:3*8 + 2*6. If you directly inputs these numbers to the calculator,you will see the wrong answer: 156. If you press [3*8], [M+], [2*6], [M+], then press [MRC] once, you will get the right answer: 36. [M-] Subtracts the number shown on the display to the number stored in the memory. [MRC] Combination of [MR] and [MC]. [MR]: Recall the current memory register value. [MC]: Clear the memory register (set to zero). When you press the key once, the [MR] key was activated, when you press the key twice, the [MC] was activated. [GT] Whenever the [=] key has been pressed, the result will be stored into the Grand Total Memory. Example:If you want to calculate [2*3+3*5+6*8],press [2*3=], then [3*5=], then [6*8=]. Then press [GT], you will get the right answer [69][MU] Stands for Mark Up, which is for calculating GROSS PROFIT MARGIN (GPM). Example: Enter [100] then press the [], then [15] then press the [MU] key, you will see 117.65 (15% of this total equates to 17.65) [Constant Calculations] To Calculate[5 * 5 * 5 * 5 + 2 + 2 = 629]. You Press[5 * === + 2 == ]. You will see [629] Note: If you have any question about the calculator, please contact us directly