Eufy Video Doorbell 2K Battery Powered With Home Base 2 | E82101w4

The frequency of the alternating current supplied to a power supply or charger, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the device, ensuring proper functionality and safety.

The duration a device can operate on a single charge before needing to be recharged, expressed in various time units such as hours, days or months.

A set of categories that describe the intended purpose or application of a product, such as personal audio, business functions, or specialized equipment. Each value represents a distinct use case and can be selected for multiple products.

Indicates whether the product includes a built‑in camera that can capture images or video directly, without requiring an external device. A value of "Yes" means the device has such a camera; "No" means it does not.

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.

The proportion or angular extent that a device, such as a camera or binocular, can capture or display. Values may be expressed as a percentage of coverage (e.g., 100 %) or in degrees for horizontal/vertical angles (e.g., 160°). The attribute indicates how wide the field of view is relative to the sensor or lens.

The operating frequency of a device or component, expressed in hertz (Hz). It represents the number of cycles per second that the product’s internal circuits or wireless radios can run and is useful for comparing performance across similar products.

The diagonal measurement of the image sensor in a camera or imaging device, expressed in inches or millimeters. It indicates the overall active area available for capturing light and is commonly used to compare sensor sizes such as 1/2.3", 1/1.7", APS‑C, Full‑Frame, etc.

The range of electrical voltage that a device can safely accept from its power source, expressed in volts (V). It specifies the minimum and maximum supply voltages compatible with the product, covering both AC and DC inputs where applicable.

The IP (Ingress Protection) code indicates a product’s resistance to solids and liquids. It follows the standard two‑digit format (e.g., IP20, IP67), where the first digit represents protection against solid particles and the second against liquids. The code may include an ‘X’ to denote unknown protection for that category or multiple codes separated by commas for products offering different levels of protection in various configurations.

The highest pixel dimensions that a device can output or support for video playback or recording, expressed as width by height (e.g., 1920x1080). It indicates the maximum resolution available for visual content on the product.

The maximum distance in meters at which a camera can capture clear images or video under low‑light or darkness conditions using infrared illumination, thermal imaging, or other night‑vision technologies.

The main electrical supply that powers the device, such as mains electricity (AC), battery, USB power, PoE, or a combination of these options.

The general category or style of the product, such as laptop, printer cartridge, or cooling fan. It helps buyers quickly identify the nature of the item and compare similar products.