Epson EcoTank ET-4750 A4 Wireless Printer, Black

The frequency of the alternating current supplied to a power supply or charger, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the device, ensuring proper functionality and safety.

The alternating current voltage range that the product accepts from its power source, expressed in volts (V). It indicates the minimum and maximum supply voltages compatible with the device.

Indicates whether a device or service automatically attempts to reconnect a call after an initial disconnection, without user intervention.

Indicates whether the product includes a built‑in screen or display unit that can be used directly for viewing content, such as a monitor on a laptop, an integrated display on a device, or a built‑in screen on appliances. A value of "Yes" means the product has such a display; "No" means it does not.

Indicates whether the product’s display can show color images or is limited to monochrome output. A value of "Yes" means the screen supports full‑color rendering; "No" indicates a black‑and‑white or single‑colour display.

The number of distinct colours that a display or image can represent, expressed as an integer value such as "16.7 million colours". This metric indicates the richness and fidelity of colour reproduction for visual media.

A colour is a visual attribute that describes the hue or shade of an object or surface. It can be a single dominant colour, a combination of colours, or a range such as "Black, White". The value may be expressed in common names (e.g., Black, Silver) or descriptive terms (e.g., One Colour, Assorted).

Indicates the mechanism or method used to operate a product, such as buttons, knobs, touch panels, rotary dials, sensors, or other physical or digital controls. The value describes the interaction required by the user and the available options for operating the device.

Indicates whether the device can perform copy functions and the type of copying it supports (e.g., colour or monochrome). The value is a free‑text label that describes the copying feature available on the product.

The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.

The general classification of a product, such as tablet, smartphone, router, or computer. It indicates the primary function or form factor that helps buyers quickly identify and compare similar items.

Indicates whether the device can print directly from mobile devices, network shares or other sources without requiring additional drivers or software installation. A value of "Yes" means the printer supports direct printing technologies such as AirPrint, Mopria Print Service, or similar solutions; a value of "No" indicates that direct printing is not supported.

The visual technology used by the product’s screen, such as LCD, LED, OLED, TFT or analog. It indicates the underlying display panel that determines image quality, color reproduction and power consumption.

The measurement of a display’s diagonal, expressed in inches or centimeters. It represents the overall visual area available for content and is commonly used to compare monitors, televisions, laptops, tablets, and other electronic devices.

Indicates whether the product supports printing on both sides of a sheet in a single pass. A value of "Yes" means the device can automatically print double‑sided pages, while "No" indicates it only prints on one side. This attribute applies to printers, multifunction devices and other equipment that handle paper.

Indicates whether the device can automatically print on both sides of a sheet in a single pass. A value of "Yes" means duplex printing is supported; a value of "No" indicates that only single‑sided printing is available.

Indicates whether the product has been certified by Energy Star, a recognized standard for energy efficiency in appliances and electronics.

A list of envelope sizes that a product can accept, expressed with standard codes or names (e.g., "DL", "C5", "10"), optionally combined in comma‑separated groups to indicate compatible envelopes.

Indicates whether the product has an Ethernet interface for wired network connectivity, allowing data transmission over RJ‑45 or compatible cables.

The amount of memory available for storing fax documents, expressed either as a number of pages or as a digital storage size (e.g., megabytes). It indicates how many faxes can be queued or archived before the device requires clearing or additional storage.

The time required for a fax machine to transmit one page, expressed as seconds per page. This metric indicates the speed of the device’s faxing capability and allows users to compare how quickly different models can send or receive documents.

The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.

The physical or logical interface used by a device to connect with other components, such as USB, PCI Express, SATA, Ethernet, Thunderbolt, DisplayPort, or similar standards. It indicates the technology that enables data transfer and power delivery between the product and its peripherals.

A list of macOS operating system versions that the product supports or is compatible with, such as "macOS 10.15 Catalina", "macOS 11 Big Sur" or newer releases. Each entry represents a distinct OS version that can run on or be supported by the device.

A classification that indicates the target audience or use case for a product, such as Business, Gaming, Home & Office, Education, etc. It helps customers quickly identify which products are best suited to their needs.

The maximum pixel dimensions of a display or image, expressed as width by height (e.g., 1920x1080). It indicates the highest resolution that a device can output or support and is commonly used for monitors, TVs, smartphones, cameras, and digital images.

A comma‑separated list of mobile printing services or protocols that a device can use to send print jobs from smartphones, tablets or other mobile devices. Typical values include Apple AirPrint, Google Cloud Print, Mopria Print Service and similar cloud‑based solutions.

The maximum data transfer rate that a modem can achieve, expressed in kilobits per second (Kbit/s) or other common abbreviations such as Kbps. This value represents the theoretical peak throughput of the device under optimal conditions and allows users to compare the speed capabilities of different modems.

A list of paper or media types that a printer’s multipurpose tray can accept, such as envelopes, labels, plain paper, recycled paper, transparencies, and other compatible materials. The values are free‑text strings separated by commas, allowing users to see which materials the tray supports.

The pixel density of an image or display measured in dots or pixels per inch (dpi). It indicates how many individual points are used to render the visual content, affecting clarity and detail when viewing or printing.

The type of paper input mechanism available in a printer or copier, such as a standard tray, cassette, sheet‑fed feeder, manual feed, or roll. It indicates how the device accepts and feeds paper for printing, scanning or copying.

A list of the paper or media types that a printer’s input trays can accept, such as envelopes, labels, plain paper, recycled paper, and transparencies. The values are free‑text strings separated by commas, allowing users to see which materials are compatible with the device.

A list of the dimensions and names of photo‑paper formats that a device can print on, such as "10x15 cm", "4x6", or custom sizes expressed in millimetres or inches. Each value represents a distinct paper size that the printer is capable of handling for photographic output.

Indicates whether a power cord is supplied with the product. A value of "Yes" means that a power cable is included in the package, while "No" indicates it is not provided and must be purchased separately.

The type of printing process or technology used by the product, such as laser, inkjet, thermal, LED, or other specialized methods.

Indicates whether the printer can produce colour output or is limited to monochrome (black‑and‑white) printing. Typical values are "Colour printing" for devices that support full colour, "Mono printing" for black‑only devices, and "No" when colour capability is not available.

A list of the colours that a product can print or produce, such as black, cyan, magenta, yellow and any additional colour variations (e.g., photo‑black, matte black). The value is a comma‑separated string of colour names. This attribute applies to printers, ink cartridges, toner cartridges, and other printing consumables.

The type of printing process or technology used by a printer, such as laser, inkjet, thermal transfer, LED, or other specialized methods.

A list of destinations or methods to which a device can send scanned documents, such as email, FTP, cloud services, USB storage, or local PC. Each option represents a supported transfer protocol or target location for the scanned output.

Indicates whether the product can perform scanning operations and what type of scans it supports (e.g., color or monochrome). The value is a free‑text label that may include terms such as "Color scanning", "Mono scanning" or simply "Yes/No" to denote availability.

A list of cryptographic and authentication methods that a device can use for secure communication or data protection. Each entry represents a distinct algorithm or protocol, such as encryption ciphers (e.g., AES, WEP), authentication mechanisms (e.g., RADIUS, WPA‑PSK), or network security protocols (e.g., HTTPS, SSL/TLS). The values are typically separated by commas and may include both technical identifiers and consumer‑friendly labels.

A list of the physical or logical interfaces that a device can use to connect with other devices, such as USB, Ethernet, Bluetooth, Wi‑Fi, RS‑232, RJ‑45, Parallel, and similar standards.

The maximum amount of material that can be fed into the device in a single operation, expressed as a numeric value followed by an appropriate unit such as sheets, pages or volume.

The total count of input trays or feeders available in a printer, copier, or multifunction device. It indicates how many separate compartments can automatically feed paper into the machine for printing, scanning, or copying tasks.

Indicates whether a device has a touchscreen interface that can detect touch input. The value is "Yes" if the device includes a functional touchscreen, and "No" otherwise.

Indicates the presence and quantity of USB connectors on a product. The value is typically an integer representing how many USB ports are available, regardless of type or version.

Indicates whether the product includes a warranty card that provides details about coverage, terms, and duration of the manufacturer’s guarantee.

The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.

Indicates whether the product has built‑in Wi‑Fi capability, allowing it to connect to wireless networks without requiring external adapters or dongles.

The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.

A list of Microsoft Windows operating system versions that the product is compatible with, including any relevant architecture or edition information.