Product Description Product Introduction: A perpetual calendar 1, Telephone & E-mail book 2, Schedule 3, World time 4, Dual time 5, Alarm time 6, Temperature C & F display 7, Currency exchange 8, 10-digit calculator 9, Snooze function 10, Low battery indication 11, Security function 12, Use 1XCR2016 battery (included) 13, Unit dimensions:102.5X63X8.4 mm Packaging: 200 pcs per carton, measurement, 44.4X37X24.2 cm, gross weight, 17.50kgs