Environmental and climate protection can also be implemented in the office with modern devices: The powerful Twen Eco 10 calculator is completely solar-powered and requires neither batteries nor an accumulator. The Twen Eco 10 serves you excellently as a calculation aid for your daily calculations. Among other things, it can calculate price increases and margins with its practical MU function and determine the total amount using the GT function. You can easily correct an accidental wrong input with the press of a button, and the 00 key allows you to quickly enter large values. Its 10-digit display is large and bright enough for you to read the results effortlessly, even in less than optimal lighting conditions. By the way, this calculator model belongs to a new generation of electronic and electrical devices made predominantly from recycled materials. The Twen Eco 10 boasts an impressive 70% recycled content, which is why it has been awarded the environmental seal "Blue Angel." Additional details: Innovative eco-calculator with solar drive (no batteries or accumulators), large 10-digit display, functions: MU, GU, correction of the last input, 00 key, attractive design, made from 70% recycled material, "Blue Angel" label.