The highly accurate Electronic Money Manager has an individual tube for each coin denomination and it actually calculates each coin when inserted with the full total of all the tubes being displayed on the clear LCD screen at the top of the unit. The Electronic Money Mangaer allows you to withdraw coins safely, all you need do is insert you own chosen security code and press the withdrawal button at the bottom of any of the respective coin tubes and the machine will automatically adjust the total amount display on the LCD screen. The Electronic Money Manager also has a clock feature. Requires 2 x AA batteries (included).