CASIO MINI CM604 Calculator - Tested and Working - Used Long-term storage item. The form has a somewhat cute feel. Uses 4 AA batteries, with an on/off switch. The exterior of the main unit is in relatively good condition for its age. No rust in the battery compartment. Please check the photos. Operation confirmed. Due to the item being used, please refrain from purchasing if you are sensitive to imperfections or expect perfection. We do not accept claims or returns after purchase. Thank you for your consideration. Calculator Calculator National Panasonic Casio Type...Calculator