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Headphone Sony MDR-RF840RK

The wireless headphones Sony MDR-RF840RK are designed to provide an immersive and comfortable audio experience. With their 40 mm driver unit, they ensure optimal sound quality and a wide frequency range of 20 to 20,000 Hz, allowing you to fully enjoy your favorite tracks.

The nickel-metal hybrid (NiMH) battery provides an impressive battery life of 28 hours of continuous playback, ideal for extended use. Additionally, the model is designed to accommodate two AAA batteries, thus offering lasting performance.

Weighing only 300 g, the Sony MDR-RF840RK are lightweight and easy to handle. Their wireless range of 100 m allows for a stable and efficient connection, giving you the freedom to move without being hindered by cables.

The modern black design of the headphones makes them not only functional but also stylish. Whether for listening to music, watching movies, or playing games, the Sony MDR-RF840RK are a smart choice for quality sound enthusiasts.

Manual of product MDR-RF840RK

8 10

Editorial note

The Sony MDR-RF840RK headphones stand out for their excellent sound quality, thanks to a 40 mm driver that delivers deep bass and clear highs. These features, combined with a wide frequency range of 20 to 20000 Hz, ensure an immersive listening experience. Additionally, the impressive battery life of 28 hours allows you to enjoy your music without interruption, making these headphones ideal for extended use. The wireless connectivity technology, with a range of 100 meters, offers great freedom of movement, which is a real advantage for active users. However, some drawbacks deserve to be highlighted. The weight of 300 g may be considered relatively heavy, which could lead to listening fatigue after prolonged use. Furthermore, although the nickel-metal hydride (NiMH) batteries provide good performance, they require regular replacement, which can be less convenient than rechargeable options. The lack of RF connectivity also limits compatibility with other wireless devices, and the in-ear coupling may not suit all users. In terms of design, the model has a modern and sleek appearance, but it is important to consider the weight when evaluating comfort during use. Overall, the value for money of the Sony MDR-RF840RK is good, especially given the features offered, even if some compromises need to be considered. These headphones are primarily aimed at those seeking superior sound quality and extended battery life, while being aware of the limitations in comfort and connectivity.

Score details

User experience

The user experience is generally positive due to the superior sound quality and wireless design, but the in-ear coupling may not suit everyone.

Performance

The sound performance is excellent with a 40 mm driver, providing deep bass and clear highs, ideal for immersive listening.

Battery life

The 28-hour battery life is impressive and allows for prolonged use without interruption, although the use of NiMH batteries requires regular replacement.

Design

The design is modern and sleek, but the weight of 300 g could be considered relatively heavy for extended use.

Features

The wireless connectivity with a range of 100 meters offers great freedom of movement, although the lack of RF connectivity limits some options.

Value for money

The value for money is good considering the features offered, including sound quality and battery life, despite some drawbacks.


Advantages

28-hour battery life

Immersive sound quality

Wireless connectivity up to 100 meters

Comfort for long sessions

Durable and reliable batteries

Disadvantages

Heavy, possible fatigue during prolonged use

NiMH batteries require regular replacement

Lack of RF connectivity, limited compatibility

In-ear, comfort varies by user

100 m range insufficient for large spaces

Technical Specifications MDR-RF840RK

General Information

Battery

  • Streaming audio playback
    28 h
  • Battery technology
    Nickel-metal hydride (NiMH)
  • Battery type
    AAA
  • Number of supported batteries
    2

Headphones/Earphones

  • Reading unit
    40 mm
  • Type of magnet
    Ferrite
  • Headphone frequency
    20 - 20000 Hz
  • Ear coupling
    Circum-aural

Other features

  • Dimensions (LxWxH)
    112 x 245 x 310 mm

Connectivity

  • Wireless router range
    100 m
  • Connectivity technology
    Wireless
  • RF Connectivity
    Yes

Weight and dimensions

  • Weight
    300 g

Representation / realization

  • Product color
    Black
  • Product type
    Headphones

Frequently Asked Questions

At what level does the volume become too high?
A volume of 80 decibels can damage hearing. If the sound exceeds 120 decibels, injuries can occur immediately. The risk of hearing damage varies depending on the frequency and duration of listening.
Is it possible to make hands-free calls with this headset?
Recent headsets often come equipped with a built-in microphone that allows for making calls.
What is noise cancellation technology?
Noise cancellation reduces ambient noise.
What is Bluetooth?
Bluetooth allows for wireless data transmission between electronic devices via radio waves, typically with a range of up to ten meters.
What is the weight of the Sony MDR-RF840RK headset?
The Sony MDR-RF840RK headset weighs 300 grams.
How do I connect my Sony MDR-RF840RK headphones to an audio device?
To connect your headset, simply plug the transmitter into the audio output of your device. Make sure it is properly connected for optimal performance.
Why can't I hear sound with my Sony MDR-RF840RK headphones?
First, check that both the headphones and the transmitter are turned on. Also, ensure that the volume settings on both the headphones and the audio device are not set to minimum or mute.
How do I adjust the volume on my Sony MDR-RF840RK headset?
To adjust the volume, use the control located on the right ear cushion. Turn it clockwise to increase the volume and counterclockwise to decrease it.
How do I recharge the batteries of my Sony MDR-RF840RK headset?
To charge the batteries, place the headset on the provided charging station, ensuring it is connected to a power source. The charging indicator will light up to show that charging is in progress.
Can I use my Sony MDR-RF840RK headphones with multiple devices at the same time?
No, these headphones operate on a single-channel transmission, meaning they can only connect to one audio device at a time. To use them with another device, you must manually disconnect and reconnect them.
What is the continuous audio playback time of the Sony MDR-RF840RK headset?
The Sony MDR-RF840RK offers a continuous audio playback time of 28 hours, allowing for extended listening without recharging.
What is the driver size of the Sony MDR-RF840RK headset?
The driver of the Sony MDR-RF840RK measures 40 mm, which means these headphones have relatively large drivers that can enhance sound quality and bass response.
Can the Sony MDR-RF840RK connect wirelessly?
Yes, the Sony MDR-RF840RK headset can connect wirelessly, allowing for wireless audio streaming from compatible devices without cumbersome wires.
What type of ear coupling does the Sony MDR-RF840RK headset have?
The Sony MDR-RF840RK has circumaural coupling, meaning its ear cushions completely envelop the ears, providing increased comfort and better sound isolation compared to supra-aural or in-ear models.
Is the manual for the Sony MDR-RF840RK available in French?
Yes, the manual for the Sony MDR-RF840RK is available in French.

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Presentation of product MDR-RF840RK specifications from brand Sony

General Information

The Sony MDR-RF840RK headphones, manufactured by the renowned brand Sony, are designed to provide a high-quality audio experience. This model, identified by the code MDR-RF840RK, is known for its superior performance and user comfort. The EAN code 4905524374308 allows for precise identification of the product in distribution systems.

Battery

The Sony MDR-RF840RK stands out for its impressive battery life, allowing up to 28 hours of continuous audio playback. Equipped with a nickel-metal hybrid (NiMH) battery, these headphones ensure reliable performance and appropriate durability for daily use. They operate with two AAA batteries, providing sufficient capacity for extended listening sessions.

Headphones/Earphones

Featuring a 40 mm driver unit, these headphones deliver exceptional sound quality, allowing for total immersion in your music. Their design with a ferrite magnet promotes clear and efficient sound reproduction. With a frequency range of 20 to 20,000 Hz, the Sony MDR-RF840RK offers a rich listening experience, while the in-ear coupling optimizes comfort and acoustic isolation.

Other Features

The product dimensions, measuring 112 x 245 x 310 mm, ensure a suitable fit for various spaces, making them easy to store and transport.

Connectivity

The wireless connection range of the Sony MDR-RF840RK extends up to 100 meters, ensuring stable and effective transmission in your environment. Thanks to their wireless connectivity technology, these headphones offer freedom of movement without the constraints of cables. However, it is important to note that they do not support RF connectivity.

Weight and Dimensions

300 g, these headphones are designed for prolonged use without compromising comfort, although some users may find this weight slightly high for very long listening sessions.

Representation / Achievement

With an elegant black finish, the Sony MDR-RF840RK features a modern design that easily fits into any environment. They are specifically designed to provide an immersive audio experience while ensuring optimal comfort during listening.