Jabra BIZ 2400 II QD Duo NC Specifications, Tests and Review

Headphone type
On-ear
Connectivity
Wired
Frequency Response
120 - 4500 Hz
Microphone
Boom

Complete technical specifications, details, expert ratings and review of Jabra BIZ 2400 II QD Duo NC. Find out how your chosen headphones stack up against the competition and whether they are the ones that best meet your expectations with the headphone comparison feature.

Jabra BIZ 2400 II QD Duo NC Full Specifications and Details

design and dimensions sound quality microphone cable connections others

DESIGN AND DIMENSIONS Jabra BIZ 2400 II QD Duo NC
Product Type Headset - wired - Quick Disconnect
Height 16.9 cm
Width 2.7 cm
Depth 13.3 cm
Earpad Material Leatherette, foam
Protection Breath-resistant
Recommended Use Phone - communication

The Jabra BIZ 2400 II QD Duo NC are wired headphones. In the case of studio and professional DJ headphones, a wired connection is a standard and a necessity. In this case, connecting via cable reduces audio transmission delays and prevents unwanted battery drain as it would be in case of wireless headphones. The same is de facto true for gaming headsets. In case of headphones for normal music listening, the cable is rather a relic, although it still has its fans. However, the wireless option is much more popular for everyday use in today’s world.

The headphones are designed as on-ear. On-ear headphones are generally lighter. However, their design has fewer isolation capabilities, and therefore, for example, more sound can be let in and out compared to around-ear headphones.

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SOUND QUALITY Jabra BIZ 2400 II QD Duo NC
Headphones Form Factor On-ear
Headphones Technology Dynamic
Adjustable Headband Yes
Connectivity Technology Wired
Sound Output Mode Stereo
Frequency Response 120 - 4500 Hz Worse than 97 % of headphones rated.
Max Input Power 20 mW
Diaphragm 30 mm Worse than 79 % of headphones rated.
Features PeakStop technology, FreeSpin technology

The sound quality can be affected by many factors. When it comes to frequency range, the wider it is, the more detail you will hear when listening. However, the range a person can perceive is highly individual. The average person is able to perceive frequencies in the range of 16 to 20 000 Hz. So the most common frequency range you will see on the market is 20 to 20,000 Hz. Lower frequencies up to approximately 256 Hz are considered bass frequencies. Therefore, the lower the bottom value is, the better the headphones will reproduce bass. Conversely, values from approximately 2 048 Hz upwards are treble. That is why headphones with a high upper value will provide a much more accurate reproduction of high notes. Jabra BIZ 2400 II QD Duo NC offers a frequency range of 120 - 4500 Hz. The maximum input power of these headphones indicates how many decibels they can receive from the device without any damage. For Jabra BIZ 2400 II QD Duo NC, it is 20 mW.

An important part of these headphones is the diaphragm, which, simply put, converts the electrical signal into a sound. The thin diaphragm that is around 6 mm thick can react quickly to changes in the audio signal and improves high-frequency listening. However, it is less sensitive to bass. The medium-thick diaphragm of around 10 mm provides a fairly balanced sound profile, allowing you to enjoy both bass and treble. A thicker diaphragm of around 20 mm cannot react so quickly to changes in the sound signal, thus impairing bass listening. However, it is more sensitive to higher frequencies. This model features the 30 mm.

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MICROPHONE Jabra BIZ 2400 II QD Duo NC
Form Factor Headset microphone
Type Boom
Noise Cancelling Yes Better than 94 % of headphones rated.

Jabra BIZ 2400 II QD Duo NC has a boom–type microphone. A nice benefit of the microphone of the Headphones Jabra BIZ 2400 II QD Duo NC is the Noise Canceling technology that suppresses ambient noise and allows a clearer sound recording to be captured.

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CABLE Jabra BIZ 2400 II QD Duo NC
Cable Type Headset cable - Kevlar reinforced - 1 m
Cable Length 1 m
CONNECTIONS Jabra BIZ 2400 II QD Duo NC
Connector Type Headset (Quick Disconnect)
OTHERS Jabra BIZ 2400 II QD Duo NC
Included Accessories Carrying pouch, clothing clip
Compliant Standards G616

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