Lock box with shackle features Bluetooth technology to let you use your smartphone to open and manage your lock. Numeric code access eliminates any worry of losing keys, forgetting combinations or having unauthorized key duplication. Administrators control individual or systemwide lock access with the convenient web interface while users enjoy simple, secure access to assigned locks or lock boxes. Low-battery notification and reminder is displayed both on the device and in the app. Large storage capacity provides ample space to hold keys and access.