This pack of six midi desktop calculators from Tallon is ideal for use in maths classrooms. Perfect for both business and student use, the simple and easy to use functions include a memory feature and auto power off, saving battery power. The large display fits 8 digits and tilts upwards making it clear to see. The plastic keys add to the durability of the unit which runs on both battery and solar power, ensuring it won't run out of power during a task.