This is a Canon F-766S scientific calculator, a high-function model equipped with 230 built-in functions and 38 mathematical formulas, designed for advanced calculation needs in education, engineering, and technical fields. The calculator features dual power operation (solar cell and battery), ensuring reliable performance under various lighting conditions. The clear LCD display, logical key layout, and dedicated function keys allow smooth and accurate operation. Included with the calculator are the original protective slide cover and a quick reference operation guide, which are especially useful for users who appreciate intuitive access to advanced functions. The Canon F-766S is known for its solid build quality and practical design, making it not only a dependable tool for daily calculations but also an attractive example of Canon’s electronic office equipment from its period of production. This item is offered in used condition, with visible signs of normal use, as shown in the photos. Manufacturer Information Canon Inc. is a globally renowned Japanese manufacturer founded in 1937, internationally respected for its precision optics, imaging products, and electronic office equipment. Canon’s scientific calculators are recognized for their durability, clarity of design, and long-term reliability, particularly in educational and professional environments. Notice Basic operation, including power-on and display, has been tested and confirmed using both solar power and battery power. Please note that due to international postal regulations, lithium metal batteries (CR2032) cannot be shipped. Therefore, no battery is included in this set. Size Approx. H 16 × W 8 × D 1.5 cm 151g (without batteries) Condition: (Please refer to the photos for details) - This is a vintage / pre-owned item. - Due to age and previous use, there may be signs of wear such as scratches, stains, discoloration, or creases. - Please note that vintage items may have a distinctive smell due to long-term storage or materials used. Sensitivity to such odors may vary from person to person and from country to country. - We try to describe the condition as accurately as possible, but perceptions may differ depending on individual standards. - Colors may appear slightly different depending on your monitor or lighting when the photos were taken. - Please purchase only if you understand and appreciate the unique characteristics of vintage items. Shipping The lot will be carefully packaged and sent by mainly Japan Post or DHL depend on the situation. It will be shipped from Japan, so it takes about 2-3 weeks to receive normally. Please understand that we use recycled materials (cardboard, old newspapers, etc.) as much as possible for packaging materials in order to protect the environment. Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Sometimes Customs or delivery company in your country contact you for Customs clearance via phone or email. Please make sure that you could answer their contact. If you don't, the parcel will be returned to us and it cost more double shipping fee for reshipping. Thank you for your cooperation.