1.Notebook computer safe 2.Touch keyboard 3,Hotel safety box 4,low power indication Hotel special notebook PC safe(DH-500B)General Instruction ... , 4 pieces 1.5V alkaline battery is needed to install into the safe 2.Close door : Close the door and Input ... Board Standard: Door 5mm, Wall 2mm Specification: 6600series (applicable to notebook computer): H200×W420×D370mm, Weight 13kg Hotel special ...