I'm selling this because I bought a new one. It's currently working. I think it can still be used actively. It's currently selling for around 6500 yen. Professionals such as financial institution employees, bank employees, certified public accountants, tax accountants, financial planners, consultants, and accounting clerks also use it. The CASIO BF-750 is a silver folding calculator with multiple calculation functions. - Model: BF-750 - Brand: CASIO - Color: Silver - Functions: Multiple calculation functions - Shape: Folding - Power Source: Battery operated Thank you for looking. It will be shipped wrapped in bubble wrap.