Sony MDR-RF855RK Stereo Headphones

Indicates whether the device shows a visual or audible cue that it is currently charging. A value of "Yes" means an indicator (such as a LED, screen message, or sound) is present and active during charging; a value of "No" means no such indication exists.

The chemical composition or classification of a battery, such as lithium‑ion, lithium‑polymer, nickel‑metal hydride, sealed lead acid, alkaline, zinc‑air, etc. It indicates the type of electrochemical reaction that stores and delivers energy in the device.

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 type of ear attachment used by a headset or earphones, indicating how the device fits around or inside the ear. Common values include "Intraaural", "Circumaural", "Supraaural" and "On‑ear". This attribute helps users choose a model that matches their preferred fit and comfort.

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.

The span of audio frequencies that a product can accurately reproduce or respond to, expressed in hertz (Hz). It indicates the lowest and highest frequencies the device can handle, helping users assess suitability for music playback, communication, or signal processing applications.

The material or composition of a magnet used in the product, such as neodymium, ferrite, or other magnetic alloys. It indicates the type of magnetic core that determines strength, size, and suitability for specific applications.

The longest period a device can operate on a single charge before needing to be recharged, expressed in standard time units such as hours or minutes.

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.

A list of the radio frequency bands that a device can receive or transmit, such as FM, AM, DAB, DAB+, UHF, VHF, and other standard radio services. Each entry represents a distinct band; the list allows users to understand the radio capabilities of the product.

The overall distortion introduced by a device, expressed as a percentage of the total output signal. It represents the ratio of all harmonic components to the fundamental frequency and indicates how much the waveform deviates from a perfect sine wave.

A textual description of the way a product is worn or fitted on the body, such as "headband", "earhook", "neck‑band", "over‑the‑ear", or "in‑ear". This attribute helps users understand how the item will be positioned and secured during use.