Plantronics APP-51 Electronic Hook Switch (EHS) for Savi Office and CS500 Range

A list of brand names that the product is compatible with. Each entry represents a manufacturer whose products can be used with or alongside the item.

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 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.

Indicates whether a product has illumination or lighting capability. The value is "Yes" if the product includes any form of light source (LED, back‑lit display, built‑in lamp, etc.) and "No" otherwise.

Represents the count of individual units included in a product offering, such as pieces, packs, or sets. It indicates how many discrete items are available per purchase.