Deli Scientific Calculator

KICD-approved Deli scientific calculator. Big And Clear 2-Line Display. High-Quality LCD Screen For Clear Reading. button Life Tested For 500000 Times. Printing On The Button Tested For 300000 Times Easy To Use With 240 Mathematical Functions Like Trigonometrical, Logarithmic, Permutation, Combination, And Many Others. It supports dual power with auto power off when not in use. Sliding Cover For Portability And Protection