Item No.: PN-2688 Product Type: arithmetic calculator Specification: 17.1*10.6 * 1.6CM Button: Independent detachable Adapter battery: Button Battery Display digits: 12 Material: ABS Advanced calculations let you quickly work through multi-step problems. Fixed LCD displays crisp digits to prevent reading errors. Easy carry:Hand held desktop calculatorit doesn't use much desk space, but it's big enough to be comfortable using it.Start from accuracy calculation and success will follow. Apply For: It perfects for office, business, school, store, mall and home use. It supports typing by user such as studentsbank stuff, financial worker, front Desk clerk and data analyst etc.