Dell Pro Keyboard and Mouse (RTL BOX) KM5221W Wireless, Wireless (2.4 GHz), Batteries included, US International (QWERTY), Black

The illumination source used behind a display panel, such as LED, WLED, CCFL or LCD. It determines the brightness, energy efficiency and color accuracy of the screen.

The kind of physical or touch-based button mechanism used on a device, such as a mechanical pressed button or a capacitive touch button. It indicates how the user interacts with the control surface and helps buyers understand the tactile feel and durability of the product.

The colour or combination of colours that a product is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the item for consumers.

List of physical or logical interfaces that a device can use to connect with other components, such as USB, PCI Express, SATA, Ethernet, Thunderbolt, DisplayPort, and similar technologies. Each value represents an interface standard supported by the device.

The operating frequency range of a device expressed in hertz (Hz). It indicates the specific radio frequencies that the product can transmit or receive, whether as a single value (e.g., 2.4 GHz) or a range (e.g., 2.4–5 GHz). This attribute helps users understand the wireless capabilities and compatibility of the device with network standards.

Indicates whether a keyboard or input device includes programmable hot keys that can be customized for shortcuts, media control, gaming macros, or other functions.

The physical shape or configuration of the battery used in a keyboard, such as AA, AAA, or a built‑in rechargeable unit. It indicates whether the device requires removable cells or has an integrated power source.

The overall size of a keyboard expressed as length × width × height, typically in centimeters or inches. This attribute indicates the physical footprint of the keyboard and helps customers determine whether it will fit into a desired space, shipping container, or storage area.

Represents the physical layout or size classification of a keyboard, such as full‑size, mini, tenkeyless (TKL), or other common form factors used in computer input devices.

The natural language that the keyboard layout is designed for, indicating which regional or linguistic variant of key labels and input methods are available on the device.

The arrangement of keys on a keyboard, indicating the language or region it supports (e.g., QWERTY, UK QWERTZ, AZERTY). This attribute helps users identify which typing layout is available for the device.

A concise description of the physical shape or layout style of a keyboard, such as "Straight", "Curved" or "Numeric". It indicates whether the keys are arranged in a flat, angled, or numeric‑only configuration and helps users identify the typing experience and ergonomics of the device.

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

A list of mobile operating systems that the product supports, including specific versions and architectures when relevant. Each value represents a distinct OS that is compatible with the device.

The chemical composition or classification of the battery used in a computer mouse, such as alkaline, lithium‑ion, NiMH, or other types. This attribute helps users determine compatibility with replacement batteries and understand power characteristics.

The type of technology used to detect movement in a device or system, such as optical sensors, laser tracking, infrared LEDs, or capacitive touch. It indicates how motion is sensed—by visual changes, light scattering, or electronic signals—and helps users understand the underlying mechanism for motion detection.

The number of dots per inch that a device can detect or render when tracking movement. It indicates the spatial resolution of motion sensing or optical tracking, allowing users to understand how finely the device can capture or display motion details.

The total count of individual batteries that are included with a keyboard product. This value indicates how many separate battery units are supplied or required for the keyboard to operate, helping buyers understand power requirements and replacement needs.

The total count of individual batteries that are supplied with the mouse component of a product. It indicates how many separate battery units are included in the package or required for operation, allowing users to assess power needs and replacement frequency.

The total count of dedicated hot‑key buttons available on a keyboard or input device. These are programmable keys that perform specific functions such as launching applications, controlling media playback, or executing system commands. The value is an integer representing how many separate hot‑keys the device offers.

The range of temperatures in which a product can safely operate without risk of damage or performance degradation. Values are expressed in degrees Celsius (°C) and may represent a single temperature, a minimum–maximum interval, or an average operating point.

A list of operating system names and versions that the product can run or support beyond its primary OS, including both commercial and open‑source distributions. Each value represents a distinct OS that is compatible with the hardware or software.

The main electrical supply that powers the device, such as mains electricity (AC), battery, USB power, PoE, or a combination of these options.

A brief statement of the intended or most suitable use cases for a product, such as the type of environment (indoor, outdoor), activity (gaming, office work, music listening) or general application category. It helps customers quickly determine whether the item fits their needs.

The type of input mechanism that allows a user to scroll or navigate within an application, such as a wheel, touch surface, buttons, ring, or trackball. It indicates how the device translates physical movement into scrolling actions on the screen.

The direction(s) in which a device can scroll or navigate within an application, such as vertical, horizontal, or both.

The total duration a battery can operate before it needs replacement, expressed in months. It indicates how long the battery will last under typical usage conditions and helps users compare longevity across products.

The range of temperatures in which a device can safely operate without risk of damage or performance degradation. Values are expressed in degrees Celsius (°C) and may represent a single temperature, a minimum–maximum interval, or an average operating point.

The maximum distance over which a device can maintain a reliable wireless connection to another device or network. It is expressed in linear units such as meters or feet and indicates the effective coverage area for Wi‑Fi, Bluetooth, RF, or other radio technologies.