Functions and features of a transparent all-in-one machine, such as the P1520 series, may include:

Transparent Display: The main feature is a transparent display that allows users to see through the screen while content is being displayed. This feature is useful for applications where you want to showcase content while maintaining visibility of objects behind the screen.

Built-in Computing System: These machines typically include an integrated computing system, such as a processor, memory, and storage. This eliminates the need for an external computer to drive the display, simplifying installation and reducing cable clutter.

Connectivity Options: Transparent all-in-one machines may offer various connectivity options, such as USB, HDMI, DisplayPort, Wi-Fi, and Ethernet, to connect external devices or content sources.

Operating System: The machine may come pre-installed with an operating system, such as Windows or Android, allowing users to run compatible applications directly on the device.

Content Management: Some models may have built-in content management systems that enable users to schedule and manage content playback easily.

Remote Control and Monitoring: Manufacturers may provide remote control and monitoring capabilities, allowing users to manage multiple units from a central location.

Size and Form Factor: Transparent all-in-one machines are available in different sizes and form factors to suit various installation requirements and display needs.

Audio Output: They might include built-in speakers or audio output options to enable audio playback for multimedia content.

Customization: Depending on the manufacturer, there might be options for customization, such as size, color choices, or specific features tailored to the customer's requirements.