Yealink WH66 UC Mono DECT Headset

Indicates whether the product comes with an AC power adapter included in the package. A value of "Yes" means a charger is supplied, while "No" indicates that no charger is provided and the user must obtain one separately.

The electrical potential difference supplied to or measured across a battery’s terminals, expressed in volts (V). It represents the battery’s nominal operating voltage and is used to match power sources, chargers, and devices that require a specific voltage level.

The specific version of the Bluetooth standard supported by a product, expressed as a numeric value (e.g., 4.2, 5.0) or with additional descriptors such as "+HS" or feature lists. This attribute indicates the capabilities and compatibility for wireless communication.

A list of the cable types that are supplied with the product, such as USB, HDMI, VGA, DisplayPort, LAN (RJ‑45), SATA, audio or other relevant connectors.

A list of official certifications or compliance marks that the product has received from regulatory bodies, safety organizations, or industry standards groups. Each entry represents a distinct certification such as CE, FCC, RoHS, UL, or WEEE, and may include additional details like version numbers or specific test reports.

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.

Indicates the mechanism or method used to operate a product, such as buttons, knobs, touch panels, rotary dials, sensors, or other physical or digital controls. The value describes the interaction required by the user and the available options for operating the device.

The physical dimension of the driver’s diaphragm or cone in a speaker or headphone. It is expressed as a linear measurement (e.g., millimetres, centimetres, inches) and allows users to compare the relative size of drivers across different products.

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 general classification of a headset based on how it delivers audio to the user, such as binaural (two‑channel), monaural (single‑channel), or other configurations. This attribute helps buyers understand whether the device provides stereo sound, single‑speaker output, or specialized listening modes.

A list of the functions or statuses that an LED indicator on a device can display, such as power status, activity, link, and other operational signals.

The span of audible frequencies that a microphone can accurately capture, expressed as a minimum and maximum value in hertz (Hz). It indicates the lowest and highest tones the device can reproduce or record, helping users assess suitability for different audio applications.

The acoustic sensitivity of a microphone, expressed in decibels (dB). It indicates how effectively the microphone converts sound pressure into an electrical signal; lower (more negative) values mean higher sensitivity and better performance at low sound levels.

Indicates whether a product includes an active noise cancellation feature that reduces ambient sound during operation. A value of "Yes" means the device can actively cancel background noise, while "No" indicates it does not have this capability.

The total count of microphones integrated into a device. This value indicates how many separate audio input channels are available for recording or voice‑recognition functions.

A list of functional controls or button combinations that can be used on a device, such as volume adjustment, mute, play/pause, call handling, and Bluetooth pairing. Each entry represents an individual key action or a multi‑key sequence that the user can trigger.

The form of packaging used for a product, such as box, blister pack, bag, or pallet. It indicates how the item is contained and protected during shipping and storage.

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 sensitivity of a device expressed in decibels (dB), indicating how much sound or signal it can detect or respond to. Values may include positive, negative, or zero levels and sometimes reference frequencies such as 1 kHz. This attribute helps users compare the responsiveness of microphones, speakers, or other audio equipment.

The total duration a device can remain powered on while not actively in use before it automatically powers off or enters low‑power mode. It is expressed in standard time units such as hours, minutes, or days and applies to batteries, chargers, and other electronic components that support standby operation.

The maximum continuous duration a device can handle voice communication before needing recharge or power interruption, expressed in standard time units such as minutes or hours.

The linear distance that a USB cable covers, expressed with a length unit such as meters, centimeters or inches. It represents the total usable length of the cable for connecting devices.

The physical interface of the main USB port on a device, such as USB‑A, USB‑B, USB‑C, Micro‑USB or Mini‑USB. It indicates the shape and electrical characteristics that determine compatibility with cables, adapters and peripherals.

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.

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