Sony MDR-IF240RK Wireless Headphone SystemSony MDR-IF240RK Wireless Headphone System
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- System has 24-foot range and lasts up to 35 hours
- Simple battery recharging
- High-powered ferrite magnets generate superb sound
- Weighs 6.3 ounces
Go wireless with your music. The MDR-IF240RK wireless stereo headphone system features 30mm drive units for deep bass, up to 30 hours of battery life on a single charge, and a transmission range up to 24 feet. Permitting an easy connection to your home audio system, TV or VCR, these headphones provide a personal entertainment experience you can really move to.
Go Infrared
Infrared transmission works by sending out infrared light signals from the transmitter to the headphones. Infrared signals are resistant to external noise and interference, but the headphones must be within line of sight of the transmitter--the signal can't pass through walls, furniture, or other obstacles.
That said, these phones offer a 24-foot transmission range, for listening enjoyment throughout the room, and a 90° transmission angle (maximum) for uninterrupted listening as you move around.
A convenient mute function lets you temporarily suspend audio, and the simple controls include an automatic power switch and single volume control.
Lightweight, Comfortable Design
Wear the MDR-IF240RK phones comfortably for hours on end, thanks to a lightweight construction, wide headband, and open-air design that lets you continue to hear ambient sound.
Powerful Sound
30 mm diameter drive units deliver serious bass, and a wide dynamic range. PET diaphragms ensure high rigidity, which minimizes distortion, even at higher volume levels. Ferrite magnets combine high energy and small size, for ample sound output without weighing the headphones down.
Great Battery Life
The included NiCad rechargeable battery automatically recharges when you place the headphones on the supplied transmitter. Get up to 30 hours of life on a single charge, or switch to an optional AA alkaline battery for 100 hours.
MDR-V150 Specs
| Frequency Response: | 18Hz - 22,000Hz |
| Driver Unit: | 30mm |
| Magnet Type: | Ferrite |
| Diaphragm: | PET |
| Effective Range: | 24 ft (7m); 10 ft (3m) at +/-45° |
| Infrared Carrier Frequencies: | Right 2.8MHz, Left 2.3MHz; (Frequency Modulation) |
| Power Requirements: | AC 120V, 60Hz |
| Recharging Time: | 24 hours (Approximate) |
What's in the Box
MDR-IF240RK Headphones, Transmitter/Recharger, Rechargeable Battery, Connecting Cable, UniMatch Plug Adapter, AC Power Adapter
- Electronics: 0 pages
- Publisher: Sony
- Label: Sony
- Format: CD-ROM
- Studio: Sony
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1,004 of 1,022 people found the following review helpful:  Worth the price, By Driver Ed (Goldens Bridge, NY (USA)) - See all my reviews This review is from: Sony MDR-IF240RK Wireless Headphone System (Electronics) This review is on the Sony MDR-IF240R not MDR-IF240RK, not sure if there's any difference. I needed a wireless headphone for the bedroom because I watch TV over 2 hours every night while my wife sleeps and about 2 hours early in the morning. I've also owned a wireless Sennheiser HDR60 and a wired Panasonic RP-HT970 Vibration Series Headphone. The Sennheiser worked fine, but their rechargeable battery (two included) would only last me about two days. I always had one recharging so I could swap it out, but it was still annoying to have it cut out in the middle of a program. After a year one of the batteries wouldn't hold a charge any more and when I saw how much a replacement battery cost, I decided to buy the Panasonic. Because it was wired, the Panasonic RP-HT970 sounded great, especially the bass effects with DVD's. It was very comfortable and I would still be using it, if I hadn't tripped on the cable and broke it. It had also been an obstacle for my wife when she had to...Read more 381 of 393 people found the following review helpful:  Okay for tv, games, nok for music, By kyamadaret (Honolulu, HI USA) - See all my reviews This review is from: Sony MDR-IF240RK Wireless Headphone System (Electronics) These wireless headphones perform as advertised. Almost. I don't quite get the "24 feet" range but then again all the range I needed and expected was within a standard sized room. The convenience is freedom of movement within the room with decent fidelity to watch late night television or play computer games without distracting others. However the phones have a noticable hiss which is distracting for most music. Also a minor peeve is the plastic bar across the top. The bar is not padded and the phones have built-in springs which force the bar down on the top of your head. Noticably uncomforable for me after a while and I have a full head of hair. The comfort level is okay if you wear the phones draped along the back of your neck (which makes it tough to sit back in a high backed chair or lie down on the couch) or below your jaw (which makes it tough to munch on snacks in that position though). Or you can kludge it to a certain length with some electrical tape...Read more 133 of 135 people found the following review helpful:  Great for TV watching; wish I'd ordered them sooner, By Amazon Verified Purchase(What's this?) This review is from: Sony MDR-IF240RK Wireless Headphone System (Electronics) These headphones are clearly not intended for listening to music at high quality. But I have been using them to listen to my TV, and am delighted with the ease of setup, ease of use, long battery life, and apparent immunity from interference.
You can't use them outside the room, and the sound quality is good but not great. Perfect for TV. Even if obstacles partly block the infrared path, the sound continues uninterrupted. The headphones are comfortable and light, and run for many hours before recharging. I am totally satisfied with the product, and only wish I had ordered something like this years ago! |
