About this item ? 0.77 Cuft External dimensions 13.78″(L)*9.84″(H)*9.84″ W ; Internal volume:0.77 cuft.Cash,documents,jewelry,certificates,and so on can be stored in this safe.The safe is made of upgraded high-quality alloy steel and with 20mm bolts, providing absolute safety. ? High Precision Touch Screen Anti accidental touch mode: Only after clicking the # button can other buttons be entered, which effectively prevents trouble caused by accidental touch of the safe during use.In addition, the precise touch screen and quick response can open the safe more quickly. ? Dual Alarm Protection ①Password Error Alarm:When the password is entered incorrectly 3 times in a row,it will activate the warning beep for 20s.②Vibration Alarm When the safe is subjected to vibration and shaking,the buzzer will beep for a long time.Protecting the safety of your family and belongings. ? Mute Function When you need a quiet usage process, you can always turn on or off the mute mode.Press the “*” button once, then press the “1” button once, the green light will light up,and the mute function will be activated. ? Keys 2 Password Formats You can set two passwords, the master code and the user code to reduce the occurrence of forgetting the password.If you forget the password, you can also use the emergency key to open the safe.Note: Do not place the key in the safe ? Wall or Floor Mounting This safe has pre-drilled mounting holes in the back and bottom, so it can be installed on the wall or floor. We provide 4 expansion screws for mounting.