Earbuds,XinStore In-Ear Headphones Compatible Android Smartphones MP3 Plays Built-in microphone Stereo Bass Volume control
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| EARBUDS |
Do you know that amazon earbuds is topping the chart as
bestseller in electronics at amzon?
You might or you might not. But the big question is,
what is so special about this earbuds that made it to be the no 1 bestseller in electronics at
amazon today? That is what we need to find out.
First and
foremost, do you know what is earbuds,? Earbuds can either be refer
to cottonbuds or headphone. But in our
article today we are going to be discussing about headphones.
Headphones
are a pair of small listening devices that are designed to be worn on or
around the head over a user's ears. They are electroacoustic transducers, which
convert an electrical
signal to a corresponding sound in the user's ear.
Headphones are designed to allow a single user to listen to an audio source
privately, in contrast to a loudspeaker, which
emits sound into the open air, for anyone nearby to hear. Headphones are also
known as earspeakers, earphones
or, colloquially, cans.
Circumauraland supra-aural headphones use a band over the top of the head to hold the
speakers in place. The other type, known as earbuds or earphones consist
of individual units that plug into the user's ear canal. In the context of telecommunication,
a headset is a
combination of headphone and microphone.
Headphones either connect directly to a signal source such as an audio amplifier, radio, CD player, portable
media player, mobilephone, video game
consoles, electronic
musical instrument, or use wireless technology
such as bluetooth or FM radio.
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| EARBUDS |
Since we
already know that earbuds refer to headphones on this articles, then we need to
know why amazon earbuds is so special and why
it is topping the charts at at amazon in electronics as the No 1 bestseller.
The reason is due to the following features.
1) It is made with high quality premium materials.
2) It has a high quality sound and bass response.
3) it is very comfortable
to use and it fit with softearphones designs.
4) The remote control is
awesome because it has answer/end calls, play/pausemusic, volume
down/up, previous track/ next track; and the build-in microphonemakes your
phone call hands-free
5) This earbuds is ideal
for all android smartphones except
iphone.
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| Three-Button Remote Control |
Brandes radioheadphones, circa 1920.
Headphonesoriginated from the earpiece, and were the only way to listen to electrical audiosignals before amplifiers were developed. The first truly successful set was
developed in 1910 by Nathaniel Baldwin, who made them by hand in his kitchen
and sold them to the United States Navy.
Somevery sensitive headphones, such as those manufactured by Brandes around 1919,
were commonly used for early radio work. These early headphones used moving
iron drivers, with either single ended or balanced armatures. The requirement
for high sensitivity meant that no damping was used, thus the sound quality was
crude. These early models lacked padding, and often produced excessive clamping
forces on the wearer's head. Their impedance varied; headphones used in
telegraph and telephone work had an impedance of 75 ohms. Those used with earlywireless radio had to be more sensitive and were made with more turns of finer
wire. Impedance of 1000 to 2000 ohms was common, which suited both crystal sets
and triode receivers.
In
early powered radios, the headphone was part of the vacuum tube's plate circuitand carried dangerous voltages. It was normally connected directly to the
positive high voltage battery terminal, and the other battery terminal was
securely grounded. The use of bare electrical connections meant that users
could be shocked if they touched the bare headphone connections while adjusting
an uncomfortable headset.
In1943, John C. Koss, an audiophile and jazz musician from Milwaukee, producedthe first stereo headphones. Previously, headphones were used only by telephone
and radio operators, and individuals in similar industries.
The3.5 mm radio and phone connector, which is the most commonly used in portable
application today, has been used at least since the Sony EFM-117J radio which
was released in 1964.It became very popular with its application on the
Walkman in 1979.
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| Three-Button Remote Control |
This earbuds
is a must for all music lovers and the price is $11.99.
Headphonesmay be used with stationary CD and DVD players, home theater, personalcomputers, or portable devices (e.g., digital audio player/mp3 player, mobilephone). Cordless headphones are not connected to their source by a cable.
Instead, they receive a radio or infrared signal encoded using a radio or
infrared transmission link, such as FM, Bluetooth or Wi-Fi. These are powered
receiver systems, of which the headphone is only a component. Cordless
headphones are used with events such as a Silent disco or Silent Gig.
In
the professional audio sector, headphones are used in live situations by disc
jockeys with a DJ mixer, and sound engineers for monitoring signal sources. In
radio studios, DJs use a pair of headphones when talking to the microphone
while the speakers are turned off to eliminate acoustic feedback while
monitoring their own voice. In studio recordings, musicians and singers use
headphones to play or sing along to a backing track or band. In military
applications, audio signals of many varieties are monitored using headphones.
Wiredheadphones are attached to an audio source by a cable. The most common
connectors are 6.35 mm (¼″) and 3.5 mm phone connectors. The larger 6.35 mm
connector is more common on fixed location home or professional equipment. The
3.5 mm connector remains the most widely used connector for portable
application today. Adapters are available for converting between 6.35 mm and
3.5 mm devices.
Electrical
characteristics of dynamic loudspeakers may be readily applied to headphones,
because most headphones are small dynamic loudspeakers.
|
| Three-Button Remote Control |
This earbuds
is a must for all music lovers and the price is $11.99.
Headphonesare available with low or high impedance (typically measured at 1 kHz).
Low-impedance headphones are in the range 16 to 32 ohms and high-impedance
headphones are about 100-600 ohms. As the impedance of a pair of headphones
increases, more voltage (at a given current) is required to drive it, and the
loudness of the headphones for a given voltage decreases. In recent years,
impedance of newer headphones has generally decreased to accommodate lowervoltages available on battery powered CMOS-based portable electronics. This has
resulted in headphones that can be more efficiently driven by battery powered
electronics. Consequently, newer amplifiers are based on designs with
relatively low output impedance.
The
impedance of headphones is of concern because of the output limitations of
amplifiers. A modern pair of headphones is driven by an amplifier, with lower
impedance headphones presenting a larger load. Amplifiers are not ideal; they also
have some output impedance that limits the amount of power they can provide. In
order to ensure an even frequency response, adequate damping factor, and
undistorted sound, an amplifier should have an output impedance less than 1/8
that of the headphones it is driving (and ideally, as low as possible). If
output impedance is large compared to the impedance of the headphones,
significantly higher distortion will be present.[8] Therefore, lower impedance
headphones will tend to be louder and more efficient, but will also demand a
more capable amplifier. Higher impedance headphones will be more tolerant of
amplifier limitations, but will produce less volume for a given output level.
Historically,many headphones had relatively high impedance, often over 500 ohms in order tooperate well with high impedance tube amplifiers. In contrast, modern
transistor amplifiers can have very low output impedance, enabling lower
impedance headphones. Unfortunately, this means that older audio amplifiers or
stereos often produce poor quality output on some modern, low impedance
headphones. In this case, an external headphone amplifier may be beneficial.
|
| Three-Button Remote Control |
This earbuds
is a must for all music lovers and the price is $11.99.
Sensitivity
is a measure of how effectively an earpiece converts an incoming electricalsignal into an audible sound. It thus indicates how loud the headphones will be
for a given electrical drive level. It can be measured in decibels of sound
pressure level per milliwatt (dB (SPL)/mW) or decibels of sound pressure level
per volt (dB (SPL) / V). Unfortunately, both definitions are widely used, often
interchangeably. As the output voltage (but not power) of a headphone amplifier
is essentially constant for most common headphones, dB/mW is often more useful
if converted into dB/V using Ohm's Law:
Alternatively,
online calculators can be used.Once the sensitivity per volt is known, the
maximum volume for a pair of headphones can be easily calculated from the
maximum amplifier output voltage. For example, for a headphone with asensitivity of 100 dB (SPL)/V, an amplifier with an output of 1root-mean-square (RMS) voltage will produce a maximum volume of 100 dB.
Pairinghigh sensitivity headphones with power amplifiers can produce dangerously highvolumes and damage headphones. The maximum sound pressure level is a matter of
preference, with some sources recommending no higher than 110 to 120 dB. In
contrast, the American Occupational Safety and Health Administration recommends
an average SPL of no more than 85 dB(A) to avoid long-term hearing loss, while
the European Union standard EN 50332-1:2013 recommends that volumes above 85
dB(A) include a warning, with an absolute maximum volume (defined using 40–4000
Hz noise) of no more than 100 dB to avoid accidental hearing damage. Using this
standard, headphones with sensitivities of 90, 100 and 110 dB (SPL)/V should be
driven by an amplifier capable of no more than 3.162, 1.0 and 0.3162 RMS volts
at maximum volume setting, respectively to reduce the risk of hearing damage.
|
| Three-Button Remote Control |
This earbuds
is a must for all music lovers and the price is $11.99.
Headphone
size can affect the balance between fidelity and portability. Generally,
headphone form factors can be divided into four separate categories:
circumaural (over-ear), supra-aural (on-ear), earbud and in-ear.
Circumauralheadphones (sometimes called full size headphones) have circular or ellipsoidearpads that encompass the ears. Because these headphones completely surround
the ear, circumaural headphones can be designed to fully seal against the head
to attenuate external noise. Because of their size, circumaural headphones can
be heavy and there are some sets that weigh over 500 grams (1 lb). Ergonomicheadband and earpad design is required to reduce discomfort resulting fromweight. These are commonly used by drummers in recording.
Supra-auralheadphones have pads that press against the ears, rather than around them. They
were commonly bundled with personal stereos during the 1980s. This type of
headphone generally tends to be smaller and lighter than circumaural
headphones, resulting in less attenuation of outside noise. Supra-aural
headphones can also lead to discomfort due to the pressure on the ear as
compared to circumaural headphones that sit around the ear. Comfort may vary
due to the earcup material.
Both
circumaural and supra-aural headphones can be further differentiated by thetype of earcups:
Open-backheadphones have the back of the earcups open. This leaks more sound out of the
headphone and also lets more ambient sounds into the headphone, but gives a
more natural or speaker-like sound and more spacious
"soundstage"[further explanation needed] - the perception of distance
from the source.
Closed-back
(or sealed) styles have the back of the earcups closed. They usually block some
of the ambient noise, but have a smaller soundstage, giving the wearer a
perception that the sound is coming from within their hea
Semi-openheadphones, have a design that can be considered as a compromise between
open-back headphones and closed-back headphones. This may imply that the result
combines all the positive properties of both designs. Some[who?] believe the
term "semi-open" is purely there for marketing purposes. There is noexact definition for the term semi-open headphone. Where the open-back approach
has hardly any measure to block sound at the outer side of the diaphragm and
the closed-back approach really has a closed chamber at the outer side of the
diaphragm, a semi-open headphone can have a chamber to partially block sound
while letting some sound through via openings or vents.
Earphones
(popularly called "earbuds" in recent years) are very small
headphones that are fitted directly in the outer ear, facing but not inserted
in the ear canal. Earphones are portable and convenient, but many people
consider them to be uncomfortable.They provide hardly any acoustic isolation
and leave room for ambient noise to seep in; users may turn up the volume
dangerously high to compensate, at the risk of causing hearing loss. On the
other hand, they let the user be better aware of their surroundings. Since the
early days of the transistor radio, earphones have commonly been bundled withpersonal music devices. They are sold at times with foam pads for comfort.
In-ear
monitors extend into the ear canal, providing isolation from outside noise.
In-earheadphones, also known as in-ear monitors (IEMs) or canalphones, are smallheadphones with similar portability to earbuds that are inserted in the earcanal itself. IEMs are higher-quality in-ear headphones and are used by audio
engineers and musicians as well as audiophiles.
Because
in-ear headphones engage the ear canal, they can be prone to sliding out, and
they block out much environmental noise. Lack of sound from the environment can
be a problem when sound is a necessary cue for safety or other reasons, as when
walking, driving, or riding near or in vehicular traffic.
Generic
or custom-fitting ear canal plugs are made from silicone rubber, elastomer, or
foam. Custom in-ear headphones use castings of the ear canal to createcustom-molded plugs that provide added comfort and noise isolation
|
| Three-Button Remote Control |
This earbuds
is a must for all music lovers and the price is $11.99.
A
headset is a headphone combined with a microphone. Headsets provide the
equivalent functionality of a telephone handset with hands-free operation.
Among applications for headsets, besides telephone use, are aviation, theatre
or television studio intercom systems, and console or PC gaming. Headsets are
made with either a single-earpiece (mono) or a double-earpiece (mono to both
ears or stereo). The microphone arm of headsets is either an external
microphone type where the microphone is held in front of the user's mouth, or a
voicetube type where the microphone is housed in the earpiece and speech
reaches it by means of a hollow tube.
Telephone
headsets connect to a fixed-line telephone system. A telephone headset
functions by replacing the handset of a telephone. Headsets for standard corded
telephones are fitted with a standard 4P4C commonly called an RJ-9 connector.
Headsets are also available with 2.5 mm jack sockets for many DECT phones and
other applications. Cordless bluetooth headsets are available, and often used
with mobile telephones. Headsets are widely used for telephone-intensive jobs,
in particular by call centre workers. They are also used by anyone wishing to
hold telephone conversations with both hands free.
For
older models of telephones, the headset microphone impedance is different from
that of the original handset, requiring a telephone amplifier for the telephone
headset. A telephone amplifier provides basic pin-alignment similar to a
telephone headset adaptor, but it also offers sound amplification for the
microphone as well as the loudspeakers. Most models of telephone amplifiers
offer volume control for loudspeaker as well as microphone, mute function and
switching between headset and handset. Telephone amplifiers are powered by
batteries or AC adaptors.
In
late 2016, some new stereo cordless headset are coming on the market. There are
no wire between the 2 headsets and no wire between the headset and the
smartphone or PC.
|
| Three-Button Remote Control |
This earbuds
is a must for all music lovers and the price is $11.99.
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