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Stereo Neck-band Headphone with Microphone CJC-8212

Digg(185) ( 8 Reviews)
       
US $17.69
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Listen to your personal soundtrack as you commute, run errands or do whatever it is that makes you happy. Whether you use your computer for internet telephony, gaming, education lab or video conferencing, this Neck-band Headphone is wonderful! The Neck-band Headphone is purpose-designed professional monitoring headphones offering high attenuation of background noise. Capable of handling very high sound pressure levels and of extremely robust construction these Stereo Headphone perform exceptionally well in high-noise environments. This Stereo Headphone with Mic provides high-definition sound in a lightweight and compact design. Perfect for use during your workout, the real durable neck strap keeps your player secure while minimizing cord tangles.
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Product Description

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  • Specifications:

    • Wearing Style: Neck-band 
    • Sensitivity: 116dB
    • Power: 25mW
    • Frequency Response: 20Hz-20KHz
    • Impedance: 32 ohm
    • Speaker Diameter: 40mm
    • Rated Power: 45mW
    • Plug: 3.5mm Stereo 
    • Cable Length: 2m / 79in

    Features:

    • The Stereo Headphone with Mic features very lightweight and comfortable even if used for long periods
    • Adjustable ear cup design for maximum comfort
    • The frequency response and sensitivity drivers deliver powerful, accurate sound
    • High-performance neodymium drivers for super sound
    • Soft ear pads that rest on the ear
    • Super audio performance, high-tech hole panel, dynamic bass enhancement music flow
    • Smooth, seamless structure
    • High sensitivity of the microphone, to ensure clear voice transmission, after the style headphones lightweight, flexible regulation
    • Neck-band, the Neck-band Headphone feature a semi-open design intended for use in professional monitoring applications

    Details:

    Stereo Neck-band Headphone with Microphone CJC-8212

    • The Stereo Headphone with Mic features very lightweight and comfortable even if used for long periods

    Neck-band Headphone

    Stereo Headphone

    • Whether you use your computer for internet telephony, gaming, education lab or video conferencing, this Neck-band Headphone is wonderful

    Stereo Headphone with Mi

    Stereo Neck-band Headphone with Microphone CJC-8212

    • The Neck-band Headphone is purpose-designed professional monitoring headphones offering high attenuation of background noise

    Neck-band Headphone

    Stereo Headphone

    • You can control the Neck-band Headphone with Microphone well with this switch

    What is a Pair of Headphones?

    Stereo Headphone with Mi

    • Headphones are a pair of small loudspeakers, or less commonly a single speaker, with a way of holding them close to a user's ears and a means of connecting them to a signal source such as an audio amplifier, radio or CD player. They are also known as stereophones, headsets or, colloquially cans. The in-ear versions are known as earphones or earbuds. In the context of telecommunication, the term headset is used to describe a combination of headphone and microphone used for two-way communication, for example with a telephone

    Technology:

    Moving-coil:

    • The moving coil driver, more commonly referred to as a "dynamic" driver is the most common type used in headphones. The operating principle consists of a stationary magnetic element affixed to the frame of the headphone which sets up a static magnetic field. The magnetic element in headphones is typically composed of ferrite or neodymium. The diaphragm, typically fabricated from lightweight,

    Stereo Neck-band Headphone with Microphone CJC-8212

    • High stiffness to mass ratio cellulose, polymer, carbon material, or the like, is attached to a coil of wire (voice coil) which is immersed in the static magnetic field of the stationary magnet. The diaphragm is actuated by the attached voice coil, when an audio current is passed through the coil. The alternating magnetic field produced by the current through the coil reacts against the static magnetic field in turn, causing the coil and attached diaphragm to move the air, thus producing sound. Modern moving-coil headphone drivers are derived from microphone capsule technology

    Electrostatic:

    • Electrostatic drivers consist of a thin, electrically charged diaphragm, typically a coated PET film membrane, suspended between two perforated metal plates (electrodes). The electrical sound signal is applied to the electrodes creating an electrical field; depending on the polarity of this field, the diaphragm is drawn towards one of the plates. Air is forced through the perforations; combined with a continuously changing electrical signal driving the membrane, a sound wave is generated. Electrostatic headphones are usually more expensive than moving-coil ones, and are comparatively uncommon. In addition, a special amplifier is required to amplify the signal to deflect the membrane, which often requires electrical potentials in the range of 100 to 1000 volts

    Neck-band Headphone

    • Due to the extremely thin and light diaphragm membrane, often only a few micrometers thick, and the complete absence of moving metalwork, the frequency response of electrostatic headphones usually extends well above the audible limit of approximately 20 kHz. The high frequency response means that the low midband distortion level is maintained to the top of the audible frequency band, which is generally not the case with moving coil drivers. Also, the frequency response peakiness regularly seen in the high frequency region with moving coil drivers is absent. The result is significantly better sound quality, if designed properly
    • Electrostatic headphones are powered by anything from 100v to over 1kV, and are in proximity to a user's head. The usual method of making this safe is to limit the possible fault current to a low and safe value with resistors

    Electret:

    • An electret driver functions along the same electromechanical means as an electrostatic driver. However the electret driver has a permanent charge built into it, whereas electrostatics have the charge applied to the driver by an external generator. Electret headphones, like electrostatics are relatively uncommon. They are also typically cheaper and lower in technical capability and fidelity than electrostatics

    Balanced armature:

    • A balanced armature is a sound transducer design primarily intended to increase the electrical efficiency of the element by eliminating the stress on the diaphragm characteristic of many other magnetic transducer systems. As shown schematically in the first diagram, it consists of a moving magnetic armature that is pivoted so it can move in the field of the permanent magnet. When precisely centered in the magnetic field there is no net force on the armature, hence the term 'balanced.' As illustrated in the second diagram, when there is electric current through the coil, it magnetizes the armature one way or the other, causing it to rotate slightly one way or the other about the pivot thus moving the diaphragm to make sound

    Stereo Headphone

    • The design is not mechanically stable; a slight imbalance makes the armature stick to one pole of the magnet. A fairly stiff restoring force is required to hold the armature in the 'balance' position. Although this reduces its efficiency, this design can still produce more sound from less power than any other. Popularized in the 1920s as Baldwin Mica Diaphragm radio headphones, balanced armature transducers were refined during World War II for use in military 'sound-powered' telephones. Some of these achieved astonishing electro-acoustic conversion efficiencies in the range 20% to 40% for narrow bandwidth voice signals

    Stereo Headphone with Mi

    • Today they are typically used only in canalphones and hearing aids due to their diminutive size and low impedance. They generally are limited at the extremes of the hearing spectrum (e.g. below 20Hz and above 16kHz) and require a seal more than other types of drivers to deliver their full potential. Higher end models may employ multiple armature drivers, dividing the frequency ranges between them using a passive crossover network. A few combine an armature driver with a small moving-coil driver for increased bass output

    Other Transducer Technologies:

    • Transducer technologies employed much less commonly for headphones include the Heil Air Motion Transformer (AMT); Piezoelectric film; Ribbon planar magnetic; Magnetostriction and Plasma-ionisation. The first Heil AMT headphone was marketed by ESS Laboratories and was essentially an ESS AMT tweeter from one of the company's speakers being driven at full range. Since the turn of the century, only Precide of Switzerland have manufactured an AMT headphone. Piezoelectric film headphones were first developed by Pioneer, their two models both used a flat sheet of film which limited the maximum volume of air that could be moved. Currently TakeT produce a piezoelectric film headphone which is shaped not unlike an AMT transducer but which like the driver Precide uses for their headphones, has a variation in the size of transducer folds over the diaphragm. It additionally incorporates a two way design by its inclusion of a dedicated tweeter/supertweeter panel. The folded shape of a diaphragm allows a transducer with a larger surface area to fit within smaller space constraints. This increases the total volume of air that can be moved on each excursion of the transducer given that radiating area

    Stereo Neck-band Headphone with Microphone CJC-8212

    • Magnetostriction headphones, sometimes sold under the label of "Bonephones" are headphones that work via the transmission of vibrations against the side of head, transmitting the sound via bone conduction. This is particularly helpful in situations where the ears must be left unobstructed or when used by those who are deaf for reasons which do not affect the nervous apparatus of hearing

    Neck-band Headphone

    • Magnetostriction headphones though, have greater limitations to their fidelity than conventional headphones which work via the normal workings of the ear. Additionally, there was also one attempt to market a plasma-ionisation headphone in the early 1990s by a French company called Plasmasonics. It is believed that there are no functioning examples

    Benefits and limitations:

    • Headphones may be used to prevent other people from hearing the sound either for privacy or to prevent disturbance, as in listening in a public library. They can also provide a level of sound fidelity greater than loudspeakers of similar cost. Part of their ability to do so comes from the lack of any need to perform room correction treatments with headphones. High quality headphones can have an extremely flat low-frequency response down to 20 Hz within 3dB. However, rated frequency response distortion figures do not provide information on what character the sound reproduced at that frequency will be. Marketed claims such as 'frequency response 4 Hz to 20 kHz' are usually overstatements; the product's response at frequencies lower than 20 Hz is typically very small

    Stereo Headphone

    • Headphones are also useful for video games that use 3D positional audio processing algorithms, as they allow players to better judge the position of an off-screen sound source (such as the footsteps of an opponent)

    Stereo Headphone with Mi

    • Although modern headphones have been particularly widely sold and used for listening to stereo recordings since the release of the Walkman, there is subjective debate regarding the nature of their reproduction of stereo sound. Stereo recordings represent the position of horizontal depth cues (stereo separation) via volume differences of the sound in question between the two channels. When the sounds from two speakers mix, they create the phase difference the brain uses to locate direction. Through most headphones, because the right and left channels do not combine in this manner, the illusion of the phantom center can be perceived as lost. Hard panned sounds will also only be heard only in one ear rather than from one side. This latter point is of particular importance for earlier stereo recordings which were less sophisticated, sometimes playing vocals through one channel and music through the other

    Stereo Neck-band Headphone with Microphone CJC-8212

    • Binaural recordings use a different microphone technique to encode direction directly as phase, with very little amplitude difference (except above 2 kHz) often using a dummy head, and can produce a surprisingly life-like spatial impression through headphones. Commercial recordings almost always use stereo recording, because historically loudspeaker listening has been more popular than headphone listening. It is possible to change the spatial effects of stereo sound on headphones to better approximate the presentation of speaker reproduction by using frequency-dependent cross-feed between the channels, or-better still-a Blumlein shuffler (a custom EQ employed to augment the low-frequency content of the difference information in a stereo signal). While cross-feed can reduce the unpleasantness that some listeners find with hard panned stereo in headphones, the use of a dummy head during recording, with artificial pinnae, can allow on playback through headphones, the experience of hearing the performance as though situated in the position of the dummy head. Optimal sound is achieved when the dummy head matches the listener's head, since pinnae vary greatly in size and shape

    Neck-band Headphone

    • Headsets can have ergonomic benefits over traditional telephone handsets. They allow call center agents to maintain better posture instead of tilting their head sideways to cradle a handset
    • Over time, headphone cables fail. The common scenario in which a replacement might need to be purchased is the physical breakdown of copper wiring at junction points on the cord (at the TRS jack, or at the point of connection to the headphone). These are the sites of greatest and most stressful motion on a cord and so they are typically fitted with some kind of

    Package Included:

    • 1 x Neck-band Headphone

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Average Customer Review:
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patrick gallaway

Bought this item on

03-02-2011

 
comfort and sound
00:00:00 03-02-2011
great sound for the price and so comfortable I can actually sleep with them on!
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Byron Michaelides

Bought this item on

02-22-2011

 
great product
00:00:00 02-22-2011
Third set of this kind of headphones,(others lost and stolen). Great sound and comfortable for running.
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Mme RAULIN Céline

Bought this item on

02-16-2011

 
Decent
00:00:00 02-16-2011
They're cheap they're headphones. They've lasted so far I hope they keep it up. Average sound, but exactly what i expected for the price.
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Brett Stewart

Bought this item on

02-03-2011

 
Great headphones
00:00:00 02-03-2011
Over-the-ear headphones are highly-recommended instead of in-the-ear headphones as they tend to do much less damage to the ear. I have bought over 10 pairs of this model over the years. They work great, sound great and hold-up to the gym, running, etc. Can't miss with this product.
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Anderson Chamon

Bought this item on

01-17-2011

 
comfortable and rugged
00:00:00 01-17-2011
According to my son, who wrecks headphones at an alarming rate, these are comfortable and the cord strain relief works well.
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The Rebel

Bought this item on

01-11-2011

 
Great for sports....cord does not tangle
00:00:00 01-11-2011
Sound is good for the money. The cord does not tangle as it is made of some kind of nylon as opposed to plastic.
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RAFAEL MARRERO

Bought this item on

01-07-2011

 
Amazing product!!
00:00:00 01-07-2011
This product was just as good as was advertised. It was well worth the purchase!!
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Eric Lauziere

Bought this item on

01-04-2011

 
Great if you get it
00:00:00 01-04-2011
I give 3 stars to product only because I never got them So I have to assume.
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