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Sony MDR-IF240RK Infrared Wireless Home Stereo Headphone System

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Sony : Picture 1 regular

About Sony

The Sony MDR-IF240RK wireless stereo headphone system features 30mm drive units for deep bass, up to 60 hours of battery life with an optional alkaline battery or up to 35 hours of battery life with the supplied NiHM rechargeable battery and a transmission range up to 24 feet. Also utilize the transmission coverage angle-up to 90°. Permitting an easy connection to your home audio system, TV or VCR, these headphones provide a personal entertainment experience you can move to.

Sony Features

  • 30 mm diameter drive units are larger than many portable headphones for deeper bass, lower distortion and wider dynamic range; frequency response extends down to a low 18 Hz
  • Rechargeable battery (supplied) saves repeated trips to the store; automatically recharges when you place the headphones on the supplied transmitter
  • Up to 100 hours of battery life with optional AA alkaline battery; up to 30 hours life with supplied rechargeable NiCad battery
  • Complete kit including high-powered transmitter/recharger, headphones, rechargeable battery, connecting cable, UniMatch© plug adapter and AC power adapter
  • 90° transmission angle (maximum) for uninterrupted listening as you move around the room
  • PET diaphragms ensure high rigidity for minimum distortion; low mass for extended high-frequency response out to 22,000 Hz
  • Ferrite magnets combine high energy and small size, for ample sound output
  • Wide headband with a separate self-adjusting band conforms precisely to the curve of your head; stays comfortable, even after listening for hours on end
  • Mute function to avoid noise through the headphones; cuts out the sound when no audio signal is available
  • Automatic headphones power switch conserves battery life; the headphones turn on when you place them on your head
  • Single volume control in one earpiece conveniently adjusts the volume for both channels
  • Supplied connecting cord with Sony UniMatch plug that goes to the headphone output of your high fidelity system, TV set or VCR; UniMatch system accommodates either the phone jack on high fidelity components or the minijack found on video components
  • Cordless design lets you move around the room and still enjoy music or TV sound tracks; lets you turn the volume up late at night -- without disturbing anyone else
  • Easy connection to TV, VCR and audio systems, through the supplied connecting cord and plug adapter
  • Light weight so you can wear them comfortably for hours on end
  • Open-air design lets you continue to hear ambient sound
  • High-power infrared transmitter incorporates multiple Light-Emitting Diodes (LEDs) for extended coverage range
  • 24 foot transmission range for listening enjoyment throughout the room; lets you sit back from the TV set and still enjoy TV sound

Sony Specifications

Headphone Type
Open-air, Dynamic
Design
Over-the-head, Home-music/movie/games
Diaphragm
PET
Headband
Wide, Self-adjusting
Magnet
Ferrite
Plug
UniMatch Adapter
Power On/Off
Yes (Automatic On/Off switch)
Type of Use
Home
Cord
None (Infrared)
Power Requirements
AC 120V, 60Hz when used with supplied AC power adaptor, which connects to the DC 9V jack
Recharging Time
24 hours (Approx.)
Phono Input(s)
1 (Stereo L/R phono plugs)
Driver Unit
30mm
Effective Range
24 ft (7m); 10 ft (3m) at ±45°
Frequency Response
18Hz - 22,000Hz
Infrared Carrier Frequencies
Right 2.8MHz, Left 2.3MHz; (Frequency modulation)
Volume Control
Rotary control
Weight
Transmitter: 4.06 oz (115 g)
Headphones: 6.3 oz (180 g)(with battery)
Warranty
Sony 90 days limited warranty
Mfr #
MDRIF240RK
SKU
SOMDRIF240RK

Reviews about this item Powered by TurnTo®

Review Snapshot®

 
3.1

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

Most Liked Positive Review

 

Great sound, March 2013

These headphones have exceptional sound. They're extremely clear, have amazing bass of all things and really deliver a quality sound experience. They are large and sort of require that you are sitting up or with your head facing forward. For instance, if you're being lazy in bed, you can't really adjust comfortably to lying on your side to watch tv with one ear on a pillow. It would be ideal if the headphones could twist to allow for that minor listening experience. Overall, they deliver, pla

View full Review

These headphones have exceptional sound. They're extremely clear, have amazing bass of all things and really deliver a quality sound experience. They are large and sort of require that you are sitting up or with your head facing forward. For instance, if you're being lazy in bed, you can't really adjust comfortably to lying on your side to watch tv with one ear on a pillow. It would be ideal if the headphones could twist to allow for that minor listening experience. Overall, they deliver, plain and simple.

VS

Most Liked Negative Review

 

A Waste of Money

I got these with the express purpose of enjoying TV while exercising. The amount of extra hiss & static was unbearable when on the treadmill . . . an absolute waste of money. What were they thinking when advertising materials show people on equipment with big smiles. This is not the Sony I loved as a boy.

Reviewed by 7 customers

(9 of 9 customers found this review helpful)

 
4.0

Great sound, March 2013

By

These headphones have exceptional sound. They're extremely clear, have amazing bass of all things and really deliver a quality sound experience. They are large and sort of require that you are sitting up or with your head facing forward. For instance, if you're being lazy in bed, you can't really adjust comfortably to lying on your side to watch tv with one ear on a pillow. It would be ideal if the headphones could twist to allow for that minor listening experience. Overall, they deliver, plain and simple.

(6 of 6 customers found this review helpful)

 
1.0

give them a try for yourself

By

they pick up all of my neighbors cordless phones and any 2-way radios in the area

(2 of 2 customers found this review helpful)

 
5.0

Great Headphones, Great Sound and Quality

By

These are good headphones. They have great sound and the included charging cradle is neat and doesn't take much time to set up. Everything you need is included in the box and if you ask me this is a pretty good price for what you get.

 
5.0

Headphones

By

Great product & service

(10 of 10 customers found this review helpful)

 
1.0

A Waste of Money

By

I got these with the express purpose of enjoying TV while exercising. The amount of extra hiss & static was unbearable when on the treadmill . . . an absolute waste of money. What were they thinking when advertising materials show people on equipment with big smiles. This is not the Sony I loved as a boy.

 
1.0

does't work with plasma t. v.

By

does't work with plasma t.v. because of interference from t.v. it's self

(2 of 2 customers found this review helpful)

 
5.0

AMAZING!!

By

I use for TV because I have a hearing problem,I was very surprised how good these headphone were the first time I used them,I don't think you could do better for twice the price.VERY SATISFIED.

Q&A

Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Can this be used in a car with car audio or devices like tablet or Kindle? I intend to use this maximum during long drives where my kid can listen to something that exiciting to her like audio stories from Audible on Kindle or story apps from Android tablet. My car has 120V plug outlet and a line out for car audio while kindle & tablet has headphone port as well. Thanks
BRUCE P  Don't know for sure.......they do have a transmitter that plugs in so it would probably work.
Shopper  where do you buy another battery?
SAMUEL M  I am not sure because we have not had to replace the batteries yet, but I know that Batteries Plus has just about any battery you can think of. Best of luck!
Shopper  can you use with computer?
ALICE C P  Yes, I believe you can.
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