Logitech Jaybird X4 Wireless Sport Headphones (Glacier)

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Identifiers
Model Jaybird 985-000813
MPN Jaybird 985-000813
Dimensions / Weight
Key Features
Battery life
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.
8 Hours
Battery type
The chemical composition or classification of a battery, such as alkaline, lithium‑ion, NiMH, or lead‑acid. It indicates the energy storage technology used in the product and helps users identify compatibility with devices that require specific battery chemistries.
Rechargeable Lithium ion
Case colour
The colour or combination of colours that a product’s outer shell or enclosure 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 case for consumers.
Metalic
Colour
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.
Steel
Dual Earpiece
Indicates whether a headset or earphone has two separate earpieces, allowing the device to be worn on both ears simultaneously.
Yes
Form factor
Specifies the physical configuration or design of a product, such as ATX, Micro‑ATX, Mini‑ITX, tower, case with cover, etc. It describes how the device is built and what mounting or expansion options it supports.
Headphones
Frequency band
The operating frequency range of a device expressed in hertz (Hz). It indicates the specific radio frequencies that the product can transmit or receive, whether as a single value (e.g., 2.4 GHz) or a range (e.g., 2.4–5 GHz). This attribute helps users understand the wireless capabilities and compatibility of the device with network standards.
2.4GHz
Pack quantity
The total number of individual units contained within a single package or bundle. This value helps customers understand how many pieces they receive when purchasing the product, and it is useful for inventory, shipping, and comparison purposes.
1
Range 10.0m
Speaker Driver Diameter
The linear measurement across the widest part of a speaker’s driver (the diaphragm or cone), expressed in units of length such as millimeters, centimeters, inches, or feet. It represents the physical size of the driver and is used to compare audio performance, compatibility with accessories, and overall sound characteristics across different products.
6mm
Speaker Impedance
The impedance value indicates the resistance that a speaker offers to alternating current, expressed in ohms (Ω). It is used to characterize speakers and other audio components to ensure optimal compatibility with the source signal.
16ohms
Speaker Sensitivity
The sensitivity of a speaker expressed in decibels (dB), indicating how much sound pressure the speaker can produce or detect for a given electrical input level. Values may include positive, negative, or zero levels and sometimes reference frequencies such as 1 kHz. This attribute helps users compare loudness performance across different speaker models.
99dBPa/V
Wireless type
The wireless technologies that a product supports, such as Bluetooth, Wi‑Fi, NFC or other radio protocols. The value can include one or more technologies separated by commas.
Bluetooth 4.1
Jaybird