AICase Biometric Fingerprint Box allows you to access quickly and safely by two ways. One by your fingerprint,and the other one by morse code. Morse code total 12 digits consisting of “0” and“ 1” and easy to set. Supports up to 50 individual fingerprints which unlocks the box in less than 0.5 seconds using a single action. Interior capacity: It has a large interior capacity of 155 cubic inches. (Dimensions 8.9" x 5.8" x 3") Enough space to hold keys, medicine, passports, cash, mobile phones, credit cards, watches, jewelry etc during travel to avoid access by other people or kids or lose them.