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38PRO SCORE
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1.875 2 5 0
1.875
8 VOTES

The Sony MDR-IF240RK is a high-end wireless headphone set that is designed to provide a comfortable form of mobility.

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Pros

Battery life is exemplary on a single AA battery.

1 agrees

Wireless infrared system won't interfere with any other wireless devices.

1 agrees

Uses an included rechargeable cell but works with regular AA batteries for non-stop listening.

1 agrees
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Cons

Flat ear cushions are pretty bad at keeping the headphones on your head even with a slight tilt.

1 agrees

Charging light does not automatically turn off. Will keep charging unless you take it off the stand.

1 agrees

Sports a constant, noticeable hiss while in use.

1 agrees

Sound quality isn't very good for music use.

1 agrees

Headband lacks padding and is flimsy.

1 agrees
  • Only 3 words are allowed.
Edit

 

The Sony MDR-IF240RK is a high-end wireless headphone set that is designed to provide a comfortable form of mobility. The MDR-IF240RK headphone set is targeted for in-home, and casual use by a more mature user audience. With the headphones comes a high-power infrared wireless transmitter that allows users to listen in up to 24 feet away for maximum portability. The set of headphones comes as a complete kit with the transmitter, headphones, a rechargable battery, connecting cable, and a UniMatch plug adapter and AC power adapter. The MDR-IF240RK headphones also include additional features such as an 90 degree transmission angle, auto on/off that is triggered when headphones are put on your head, single volume control, easy connection supported, and Ferrite Magnets. The Sony MDR-IF240RK wireless headphones were released on June 15, 2003 and have an MSRP of $59.99, which is listed on the official Sony website.

Key Specs
  • High-power Infrared Wireless support with a maximum transmission range of up to 24 feet away
  • Transmitter included
  • 90 degree transmission angle
  • auto on/off triggered when placed, or taken off, your head
  • single volume control
  • easy connection/hookup
  • Frequency Response: 18Hz - 22,000Hz
  • Infrared Carrier Frequencies: Right 2.8MHz, Left 2.3MHz
  • Effective Range : 24 ft
  • Driver Unit: 30mm
  • Power Requirements: Rechargeable NiMH battery (supplied)
  • Magnet: Ferrite
  • Release Date: 06/15/2003
  • MSRP: $59.99
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