Kramer 120W Power Amplifier (PA-120Z)

Indicates whether the product requires an AC mains power supply. A value of "Yes" means the device can be powered from a standard electrical outlet, while "No" indicates it does not use AC mains power (e.g., battery‑powered or USB‑only devices).

A unique numeric identifier used worldwide to identify products in retail and inventory systems. It typically consists of 8, 12, 13 or 14 digits without spaces or special characters.

The efficiency rating expresses the percentage of input power that a product converts into useful output, indicating how well it uses energy compared to similar models. A higher value means less waste and lower operating costs.

The span of frequencies, expressed in hertz (Hz), that a device can operate within or respond to. It may be given as a single value, a numeric range (e.g., "20 000‑50 000 Hz"), or an open‑ended interval such as "2.4 GHz+" indicating the lower bound only.

The amount of signal amplification provided by an antenna, expressed in decibels relative to an isotropic radiator (dBi). This value indicates how much the antenna concentrates radio energy in a particular direction and helps users compare coverage or range potential across devices.

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.

A comma‑separated list of the electrical protection mechanisms built into a device, such as overcurrent, overload, short circuit, under voltage, and overheating safeguards. The attribute indicates which protective features are present to protect the equipment and connected components from abnormal power conditions.

The ratio of the desired signal level to the background noise level, expressed in decibels (dB). It indicates how clearly a device can transmit or receive audio or other signals relative to unwanted interference. A higher value means better clarity and fidelity.

A unique alphanumeric identifier assigned to each product for inventory and cataloging purposes. It typically includes letters, numbers, and sometimes hyphens or slashes to distinguish variants such as color, size, or model.

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.