This is a CASIO JW-20VT business calculator that I have used for many years. Currently, it powers on with solar power, and as the photo shows, the zero display appears, but it does not respond to input from number keys, etc. Therefore, the calculator's original functions cannot be used normally. I will sell it to someone who can use it for repairs, parts, research, or collection purposes. ● Since I have only used solar power so far, I have not confirmed the operation with a button battery (LR44). 【Product Condition】 　・Type: Junk item (defective / input operation not possible) 　・Display: Zero display OK (confirmed with solar cell) 　・Key input: Does not respond 　・Appearance: Minor scratches and dirt from use (please check the photos for details) 【Product Information】 　・Brand: CASIO 　・Model: JW-20VT 　・Power supply: Solar cell + button battery (LR44) 　・Display: 12-digit LCD digital display 　・Country of manufacture: China 　・Manufacturer: CASIO COMPUTER CO., LTD. 【Please note】 ・As there is a malfunction as described above, please refrain from purchasing if you wish to use it as a normal calculator. ・Please consider only if you understand that it is a junk item. #Kariket's Stationery Room