The OEM Victor 1200-4 Desktop Calculator features an extra-large 12-digit tilt display and a full-size PC touch keyboard. It includes an auto-replay function to check and correct up to 99 previous entries. Environmentally friendly, this calculator is manufactured with 50% recycled plastic. Additional features include cost/sell/margin calculations, two independent tax keys, percent, square root, change sign, grand total, 4-key memory, and backspace. It operates on hybrid power, utilizing both solar and battery backup.