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Sony MDR-RF985RK

Over-Ear Studio Monitor Series Wireless RF Headphones Great for Listening to TV and Music

Discontinued
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This item has been discontinued

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Become Wireless

Untangle your mind and relax with crisp, personal audio without wires. They also feature a comfortable headband and long battery life up to 25 hours. Best of all, one simple setup is all it takes to achieve optimal RF signal reception and you're on your way to cordless freedom.

General Features:

  • Over-Ear Studio Monitor Series Wireless RF Headphones
  • Over-ear design
  • Convenient rotary volume knob
  • Large 40mm speaker driver produces amazingly clear sound
  • Effective Range: Approximately 150 feet (45 m)
  • Quickly charging your headphones is a breeze with the secure charging system
  • Wireless radio-frequency transmission provides quality indoor transmission
  • Provides an ear-conscious design for long-lasting listening comfort
  • Soft and comfortable earpads with 40mm driver units
  • Tangle-free cable for convenient listening
  • Adjustable headband for comfortable listening sessions
  • Designed with a snug fit for active people
  • Nickel-plated, corrosion-resistant stereo jack
  • 1-year Manufacturer's Warranty

Product Specifications:

  • Frequency Response: 10-22,000 Hz
  • Sensitivity: 100 dB
  • Nominal Impedance: 70 Ohms
  • Cord Length: 47-1/4 in. (1.2 m)
  • Speaker Diameter: 40mm
  • Max Input Power: 1500mW

Product History:

Sony MDR-RF985RK thumbnail
(newest, current model)
Sony MDR-RF970RK thumbnail
(previous model, replaced by Sony MDR-RF985RK)
Sony MDR-RF925RK thumbnail
(previous model, replaced by Sony MDR-RF970RK (MDRRF970RK) Wireless Headphones with Noise Reuction)

Headphone Design

Headphone Type

Headphone type refers to the construction of the headphones.

Around the Ear means that the headphones wrap around the ear to provide a secure fit. This is most often seen in active and sports headphones.

Around the Neck means that the headphones wrap around the neck. This is also seen in active and sports headphones.

Earbuds means that the right and left sides of the headphones are separated and will fit securely into the ear. These are small, compact, and user friendly.

Over the Head headphones mean that the right and left speakers are connected with a support that goes over the head and rests on top. This is the typical headphone type.

Over the Head
Earpiece Design

This is the design of the earpieces on the headphones. Some headphones go inside the ear, while others rest on the outside of the ear. This helps you know exactly what type of headphones you will be receiving.

In-Ear: The ear buds go into the ear. Most often, the right and left ear buds are two separate pieces.

Enclosed-Ear: Usually are found on the larger headphones. They rest on top of the ear and have padding for comfort, as well as enclosing the ear to the speaker. This type of headphone helps to filter out surrounding noise.

On-Ear: This type of headphone involves the speaker sitting gently on the ear without going in the ear or sealing it off.

Enclosed-Ear
Specifically For
Some headphones can use an IR Transmitter in your vehicle, while some can be plugged into your media device and be used on the go or at home.
Home/Portable

General Features

Noise-Canceling
Noise Reduction technology removes unwanted noise from a signal. Background or ambient noise can be removed to produce clearer speech and enhanced hearing. Typically these Active Noise Canceling (ANC) headphones are powered and use batteries to activate the noise canceling technology. Also referred to as Noise Reduction or Noise Cancellation.
No
Headphone Connection
This is how the headphones connect to the audio source.

Corded means that the headphones use a cord to transfer the audio signal.

Wireless means that the audio signal is transmitted wirelessly to the headphones.

Wireless
Volume Adjustment
Volume Adjustment means that the headphone (independent of the source) can adjust the playback volume. Many headphones and ear buds have in-line volume control, which allows adjusting the audible volume from a switch on the headphones cord. Other headphones have a volume knob on the headphone can.
No
Built-In Microphone
This means that the headphones or earbuds have a built-in microphone. This can be a microphone on the cord, built into the headphone, or even a boom microphone. These mics can be used for music devices like iPods, for Smartphones to make and receive calls, or for gaming purposes.
No
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
12 - 22000 Hz
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
100 dB
Driver Size
This refers to the diameter of the driver (speaker) on each side of the headphone.
40 mm
Driver Type
The physical design of the driver in the headphones.
Dynamic
Impedance
The opposition to electric current, a higher impedance means a higher electrical resistance. This is measured in ohms.
40 ohms
Primary Color
This is the main color of the item.
Black
Secondary Color
A color that compliments the main color of the product.
Black

Specials with this Item

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
88%
4 Star
13%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
4.9
Features
4.9
Design
4.6
Usability
5.0
Happy

Mukilteo, WA

Overall
Durability
Value
Features
Design
Usability
Great Addition for home entertainment

September 19, 2013

It is perfect for someone who like volume up for movies. and has a wife that doesn't. I live in an apartment complex and I can't use my Bose's System So this is perfect.

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Chuck

Windsor, Ct.

Overall
Durability
Value
Features
Design
Usability
Sony wireless earphones

September 18, 2013

Very clear sound, works anywhere in the house and outside too.

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joe

glendale ca.

Overall
Durability
Value
Features
Design
Usability
very good sound and easy to access controls

September 17, 2013

the charging stand is rather large which makes it hard to store unless you have a large stand to place it on.

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jack

The Villages, Florida

Overall
Durability
Value
Features
Design
Usability
Great Price!

May 28, 2013

A friend bought this headset and he said they were great! So, I bought the same headset from Sonic Electronix for about 1/3 off the price my friend paid. And I got them in just a couple of days. I have owned the head unit for about 6 months. I am very happy with Sonic and my Sony wireless headset.

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Stephen

La Mirada, CA

Overall
Durability
Value
Features
Design
Usability
Works well when I remove my hearing aids

May 27, 2013

As I am very hard of hearing I must use the larger hearing aids that fits behind the ears, I use the wireless headphone to allow my ears to relax. I am able to hear quality sounds I can't hear with my hearing aids. I recommend them highly, it's a good reliable product.

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Geo

Caseyville, IL

Overall
Durability
Value
Features
Design
Usability
Adjustable, Comfortable, Just Right

April 23, 2013

Works as advertised, however when I move around the house there are dead spots that other headphones seem to ignore.

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rem486

Altoona

Overall
Durability
Value
Features
Design
Usability
Great investment for the price

March 6, 2013

I have owned this product for about a month. It is easy to set up and activate. It is very comfortable to wear for long periods hours. It gives a good clear signal, much better in fact than the TV audio. It is a great asset when someone else wants to study or sleep. Again, if you can afford the up front money, your in good shape It holds a good battery charge that lasts for hours with a convenient recharging station.

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DENIZHAN

Turks and Caicos Islands

Overall
Durability
Value
Features
Design
Usability
sony mdr-rf985rk

January 24, 2013

These are very nice headphones. Perfect noise quality because it's Sony. Fast shipping, thanks Sonic Electronix!

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Product Summary

Manufacturer

Model Number

MDR-RF985RK

UPC

027242850514

Weight

3.40lbs

Internal SKU

mdrrf985rk

Internal Product ID

61882

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Sony MDR-RF985RK