Lenovo Essential Wireless Keypad

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.

The network and data interface technologies supported by the product, such as Wired, Wireless, USB, Bluetooth, or combinations thereof. Each value represents a distinct technology that can be used for communication or power delivery.

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 Harmonized System (HS) code is a standardized numerical identifier used internationally to classify traded goods. It consists of up to six digits, where each pair of digits represents progressively more specific product categories. The HS code facilitates customs duties, trade statistics, and regulatory compliance by providing a common language for describing products across borders.

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 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 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 range of relative humidity (in percentage) within which the product is designed to operate reliably. Values are expressed as a minimum–maximum interval such as "20 - 80 %" and indicate the acceptable environmental moisture level for optimal performance.

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.

Indicates whether the product can be used immediately after installation without requiring additional configuration or drivers.

A comma‑separated list of protective characteristics that a product offers, such as resistance to dust, water, shock, heat, or other environmental factors.

The primary purpose of a product, indicating its main intended use or target market segment (e.g., "Gaming", "Office", "Travel"). It helps customers quickly identify whether the item matches their needs and can be used for filtering or categorization across different product categories.

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.

Represents the visual appearance or pattern applied to a product’s surface, such as a single color (monotone), an image, or a repeating design. It indicates how the exterior of the item is finished and can be used to differentiate models or styles.