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Koss Pro4S Wired Over Ear Headphones Black
Headphones

Koss Pro4S Wired Over Ear Headphones Black

The Pro4S headphones are ideal for everyday use, offering comfort and sound quality. Being over-ear, these headphones envelop your ears, achieving better isolation from external noise while providing...

The Pro4S headphones are ideal for everyday use, offering comfort and sound quality. Being over-ear, these headphones envelop your ears, achieving better isolation from external noise while providing deep bass and clear sound. Their construction is designed to offer comfort during listening, making them perfect for use at home or the office.

The headphones...

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  • Microphone

    The headphones feature a built-in microphone.
  • Usage Casual Use
  • Connectivity 3.5mm, 6.3mm
  • See all
111 13 €
112 Coins 112 Coins
Delivery Thu, 02 Jul - Wed, 08 Jul
Free   shipping cost
Sent from Romania
From ForIT 4.7 (10)
4.7 (10 reviews)
Romania
3 pieces
See Earphones on the page of ForIT
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Product report

Description

Description

The Pro4S headphones are ideal for everyday use, offering comfort and sound quality. Being over-ear, these headphones envelop your ears, achieving better isolation from external noise while providing deep bass and clear sound. Their construction is designed to offer comfort during listening, making them perfect for use at home or the office.

The headphones come in black, ideal for any style. They easily connect with various devices, using two types of plugs: the common 3.5mm and the larger 6.3mm. Thus, you have the option to use them with different devices according to your needs.

Notable features include:

  • Sensitivity of 99 dB, meaning they provide loud sound even from low power sources.
  • Detachable cable, making replacement easy in case of wear.
  • Almost zero resistance at 35 Ohm, allowing their use with low-power devices without performance issues.

However, it is worth noting that they do not feature active noise cancellation technology, which may affect the listening experience in noisy environments.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Product Details

Type
Over Ear

Type

Over Ear

Headphones with larger ear cups compared to on-ear headphones, which hug the ears.


They are more comfortable and provide better external noise isolation, but are more difficult to transport due to their larger size.

Generally, over-ear headphones can offer higher quality sound and deep bass compared to on-ear headphones of similar quality, thanks to their larger speakers.
Frequency Response
10 - 25000 Hz

Frequency Response

The range of frequencies that headphones can reproduce. The most common range is that of human hearing, 20 - 20000 Hz. A wider frequency range does not necessarily mean better sound quality.

  • (Bass) 20-250 Hz: Stronger bass, for depth. Ideal frequencies for listening to electronic or hip hop music.
  • (Mids) 250-4,000 Hz: The mid frequencies are stronger, suitable for better listening to vocals or orchestral music.
  • (Treble) 4,000-20,000 Hz: High frequencies affect the clarity and sharpness of the sound, for better listening to, for example, cymbals or the plucking of classical guitar strings.
Impendance
35 ohm

Impendance

The resistance that the speakers of headphones have to electric current. Usually, the lower the resistance, the louder the headphones sound, but the sound is less clear.

This size does not concern the average user as almost all headphones are 32 Ohms. Headphones with high resistance usually require an additional amplifier.
Sensitivity
99 dB

Sensitivity

The greater the sensitivity of the headphones, the louder they will sound at a specific volume of the source. Generally, values above 90db are considered very good. - **Above 100db**: Headphones with high Sensitivity produce more sound with less power. They can reach high volumes with low-power devices (e.g., mobile phone, laptop). - **Below 100db**: Headphones with low Sensitivity require more power to reach the same volume levels, so they may need a special headphone amplifier
Use
Casual Use
Colour
Black

Connectivity

Wired Connections
3.5mm, -, 6.3mm

Wired Connections

3.5mm
The headphones are connected via cable to the classic "jack" 3.5mm plug.
6.3mm
The headphones are connected via cable to the large "jack" plug 6.3mm.
Connection
Wired

Features & Functions

Microphone
Yes

Microphone

The headphones feature a built-in microphone.
Volume Control
No

Volume Control

The headphones feature a built-in control for sound volume.
Detachable Cable
Yes

Detachable Cable

The connection cable can be removed from the headphones.

The main advantage is that in case the cable is damaged, it can be easily replaced without needing to buy new headphones. Additionally, wireless headphones can be used as wired ones when the battery is low.
Foldable Drivers
No

Foldable Drivers

Folding ear cups help reduce the volume of headphones, making them easier to transport.

Headphones with folding ear cups often come with a carrying case.
Rotating Capsules
No

Rotating Capsules

Rotating ear cups allow headphones to have a flat shape, making them easier to transport (e.g. in a suitcase).
Card Reader
No
Radio
No
Fast Charging
No

Fast Charging

The fast charging feature allows the headphones to gain sufficient autonomy with just a few minutes of charging, ideal for use when time is limited.
High-Resolution Audio
No
Connection with 2 Devices
No
Noise Cancellation
Without

Noise Cancellation

The method of reducing external noise that headphones have.

Top Specs

Connectivity
3.5mm, 6.3mm
Noise Cancellation
-

Noise Cancellation

The method of reducing external noise that the headphones have.

Active Noise Cancellation (ANC): Uses technology to detect and neutralize external noises, offering clearer sound.

Passive Noise Cancellation: The shape and materials of the headphones naturally reduce external noises, improving the listening experience.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications
Questions

Questions

Do you have a question about the product?

Those users who have this product can help you

Ask for the product

Description & Specifications

The Pro4S headphones are ideal for everyday use, offering comfort and sound quality. Being over-ear, these headphones envelop your ears, achieving better isolation from external noise while providing deep bass and clear sound. Their construction is designed to offer comfort during listening, making them perfect for use at home or the office.

The headphones come in black, ideal for any style. They easily connect with various devices, using two types of plugs: the common 3.5mm and the larger 6.3mm. Thus, you have the option to use them with different devices according to your needs.

Notable features include:

  • Sensitivity of 99 dB, meaning they provide loud sound even from low power sources.
  • Detachable cable, making replacement easy in case of wear.
  • Almost zero resistance at 35 Ohm, allowing their use with low-power devices without performance issues.

However, it is worth noting that they do not feature active noise cancellation technology, which may affect the listening experience in noisy environments.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Product Details

Type
Over Ear

Type

Over Ear

Headphones with larger ear cups compared to on-ear headphones, which hug the ears.


They are more comfortable and provide better external noise isolation, but are more difficult to transport due to their larger size.

Generally, over-ear headphones can offer higher quality sound and deep bass compared to on-ear headphones of similar quality, thanks to their larger speakers.
Frequency Response
10 - 25000 Hz

Frequency Response

The range of frequencies that headphones can reproduce. The most common range is that of human hearing, 20 - 20000 Hz. A wider frequency range does not necessarily mean better sound quality.

  • (Bass) 20-250 Hz: Stronger bass, for depth. Ideal frequencies for listening to electronic or hip hop music.
  • (Mids) 250-4,000 Hz: The mid frequencies are stronger, suitable for better listening to vocals or orchestral music.
  • (Treble) 4,000-20,000 Hz: High frequencies affect the clarity and sharpness of the sound, for better listening to, for example, cymbals or the plucking of classical guitar strings.
Impendance
35 ohm

Impendance

The resistance that the speakers of headphones have to electric current. Usually, the lower the resistance, the louder the headphones sound, but the sound is less clear.

This size does not concern the average user as almost all headphones are 32 Ohms. Headphones with high resistance usually require an additional amplifier.
Sensitivity
99 dB

Sensitivity

The greater the sensitivity of the headphones, the louder they will sound at a specific volume of the source. Generally, values above 90db are considered very good. - **Above 100db**: Headphones with high Sensitivity produce more sound with less power. They can reach high volumes with low-power devices (e.g., mobile phone, laptop). - **Below 100db**: Headphones with low Sensitivity require more power to reach the same volume levels, so they may need a special headphone amplifier
Use
Casual Use
Colour
Black

Connectivity

Wired Connections
3.5mm, -, 6.3mm

Wired Connections

3.5mm
The headphones are connected via cable to the classic "jack" 3.5mm plug.
6.3mm
The headphones are connected via cable to the large "jack" plug 6.3mm.
Connection
Wired

Features & Functions

Microphone
Yes

Microphone

The headphones feature a built-in microphone.
Volume Control
No

Volume Control

The headphones feature a built-in control for sound volume.
Detachable Cable
Yes

Detachable Cable

The connection cable can be removed from the headphones.

The main advantage is that in case the cable is damaged, it can be easily replaced without needing to buy new headphones. Additionally, wireless headphones can be used as wired ones when the battery is low.
Foldable Drivers
No

Foldable Drivers

Folding ear cups help reduce the volume of headphones, making them easier to transport.

Headphones with folding ear cups often come with a carrying case.
Rotating Capsules
No

Rotating Capsules

Rotating ear cups allow headphones to have a flat shape, making them easier to transport (e.g. in a suitcase).
Card Reader
No
Radio
No
Fast Charging
No

Fast Charging

The fast charging feature allows the headphones to gain sufficient autonomy with just a few minutes of charging, ideal for use when time is limited.
High-Resolution Audio
No
Connection with 2 Devices
No
Noise Cancellation
Without

Noise Cancellation

The method of reducing external noise that headphones have.

Top Specs

Connectivity
3.5mm, 6.3mm
Noise Cancellation
-

Noise Cancellation

The method of reducing external noise that the headphones have.

Active Noise Cancellation (ANC): Uses technology to detect and neutralize external noises, offering clearer sound.

Passive Noise Cancellation: The shape and materials of the headphones naturally reduce external noises, improving the listening experience.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

111,13 €
Free   shipping cost