Sony 900 MHz RF Wireless Stereo Headphone System with Automatic Tuning (Model# MDR-RF970RK) Review

=>User Reviews

Sony 900 MHz RF Wireless Stereo Headphone System with Automatic Tuning (Model# MDR-RF970RK)

Overall Rating: (out of 3 reviews)

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Features:

900MHz RF Wireless Headphones
Clear Sound Quality
40mm driver units
Neodymium magnets
Induction auto-charging so no direct pin contact is necessary
Mute when no signal or weak signal is present
10-hour battery life
150′ transmission range

  • Stylish black design
  • Wireless Headphones
  • 900 MHz RF Technology
  • Operating Distance: up to 150 feet (approximate)
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Related Item(s):

=>User Reviews

Sennheiser RS 130 Wireless Surround Sound Headphones

Overall Rating: (out of 509 reviews)

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The RS 130 wireless RF headphone system with switchable surround sound is an ideal choice for both hi-fi and TV use. The lightweight RS 130 lets you enjoy freedom of movement from any audio source. Un addition, the transmitter features a convenient metal stand for storing and recharging the headphones.Experience total audio immersion and freedom with the Sennheiser RS 130 wireless headphones. With an SRS surround sound mode that can be switched on or off, and a design that completely encases your ears, the RS 130s are ideal for kicking back on the couch with a DVD when the rest of the house is asleep. Or, maybe you want to dance to the music from your hi-fi system while doing some laundry. With the RS 130s you can move around freely while enjoying audiophile-class sound wherever you roam.

While many wireless headphones suffer from poor reception, the RS 130s have the problem licked with intelligent auto tuning and a self-learning automatic signal level control that provides maximum signal reception and a range of up to 150 meters. The headphones are lightweight, too, making them very comfortable to wear. The included transmitter and stand makes recharging the headphone batteries easy; simply hang the headphones on the charging cradle and you’re good to go. With an operating time of approximately 22 hours, though, plan on spending most of your time enjoying rich sound and maximum mobility.

What’s in the Box
RS 130 headphones, rechargeable NiMH battery pack, transmitter and recharging stand, AC adapter, user’s manual.

  • Wireless, rechargeable hi-fi headphones with SRS surround sound mode
  • Intelligent auto tuning and automatic signal control ensure high-quality reception
  • Transmission range of up to 150 meters; 18 Hz to 21 kHz frequency response
  • Lightweight, comfortable design; 22 hours average battery life per charge
  • Includes Rechargable NiMH batteries, charging stand, transmitter, and 1/4-inch plug adapter
More Info

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8 Comments

Nima MotamediJune 25th, 2010 at 1:27 pm

Review submitted by Nima Motamedi
Author’s Rating:
Pros

-very comfortable fit

-charging is very simple

-speakers automatically turn off when taken off

Cons

-audible hiss in background

-source must be connected to docking station and the docking station must be plugged into an outlet

-button for volume control could be better placed

-sound is stereo, not surround

-sound lacks quality

I got these headphones as a gift to be usedwith my laptop to listen to long sessions of lectures when I study for tests and to use it with my TV when I’m up late so I don’t wake up my fiancee. I was also hoping I use these for gaming but after trying them out for a day I’m convinced that I need to exchange these. I cannot overstate how important the connectivity issues are to me. I’m no audiophile but the hiss on these phones is annoying and the sound quality is not good but the biggest issue by far is that the (bulky) charging station MUST be plugged into an outlet and be plugged into the audio source. This makes it very impractical if you move from room to room with your laptop like I do during long sessions. You can’t use these headphones when traveling because there is no outlet. Even if I connect these to my TV, I have to leave the set up right next to the TV when I’d rather have the charger next to the couch. In short, these headphones are anything but versatile. I’d have to unplug the whole get up, carry the dock and headphones to the next room/source and plug everything back in. Would be much better with a small adapter.

On the plus side, the charging is very easy and nice. You just put the speakers back in their tray and they begin recharging.

J. RottmanJune 25th, 2010 at 1:43 pm

Review submitted by J. Rottman
Author’s Rating:
I ordered two of these. One worked — some hissing, but usable and comfortable. The other did not. I called Sony and received a return label by email, and sent it back to them. It has now been in some service limbo for more than a month. I have received an email request for repair charges (it never worked!) that exceeded the purchase price. When I called Sony back they indicated that this was an error, but they have never shipped the replacement. I spent two hours today on their customer support line (not toll free, by the way) but never got anywhere. Ultimately, the call passed their magic quitting time, and they then told me to call again tomorrow.

Their support structure is dismal and disorganized. If you get a working unit, fine. If not, you would do far better getting something from some other company.

Dorothy M. GillespieJune 25th, 2010 at 2:02 pm

Review submitted by Dorothy M. Gillespie
Author’s Rating:
This is our second set of same headphones. First set we broke accidentally. So had to have same ones…they work great… thanks.

J. hansonJune 25th, 2010 at 2:13 pm

Review submitted by J. hanson
Author’s Rating:
Audio choices are obviously very personal, so I hesitate to recommend anything too strongly here. Tastes and tolerances differ so greatly, and wireless audio products really seem to push those differences. Maybe some of my needs and wants will match yours, maybe not, but please consider my thoughts here in light of the many personal qualifiers that I add. Those qualifiers may or may not relate well to your own situation. By the way, my apologies in advance for such a long review, but I really appreciate details when researching audio gear. I thought you might, too.

BACKGROUND

I’m about as picky as they come when sound is the issue. I have a small home recording studio, with 30 years of experience as a semi-pro musician (jazz, rock, classical, country). That said, I approach every musical equipment purchase with thorough research and comparison. Since I already have good wired phones (Senn 280s, Audio Technica M50s, and others) in my studio, I wanted some wireless cans mostly for moving around the house and yard while listening to music from my home stereo system, kind of a self-indulgent luxury. I’ve read enough to know that any wireless models using a radio signal (the best type of signal if you’ll be in a different room than the transmitter) will produce some hiss and pop on occasion. I accepted this fact before buying. Still, I decided I would not accept something else: poor sound quality, in a musical sense. Two of the sub-$200 phones with rather consistently high reviews (in magazines and online) were the Senn 130 and 140 models. So I ordered both models to compare them in the privacy of my home. (I paid about $115 for the RS-130 and $135 for the RS-140; be patient because the prices here fluctuate often.)

TEST EQUIPMENT

A 100-watt/channel JVC receiver and JVC CD player–both typical (low-end) home stereo components. To suit my personal tastes for EQ, I boosted some at 16 kHz (to add air to the highs) and at 60 Hz (to add depth to the lows).

FOR MUSIC NOT TV

I’ve used these cans mostly for listening to music, which usually masks any low-grade background noise. TV use, with its emphasis on dialogue, would be demanding in other ways, so I’d defer to other reviewers for feedback concerning that application.

POINT OF REFERENCE

The entry-level price for a decent set of wired (corded) cans is roughly $100. The price of these wireless Senns, especially the 130s, isn’t much more.

LIKES

Musically, both models sound as good as I’d hoped except for their shy response at the extremes (see Test Equipment above). Still, when I’ve been wearing them while working outside, I sometimes have to stop what I’m doing, raise the volume, and just listen for a while. They sound that good. I wouldn’t use them in my studio, but considering the low price and mobility, I’m very satisfied. As I’d read, the open-back 130s sound (and look) a bit like Senn’s popular 580 audiophile (wired) model–open, smooth, warm, and most of all, pretty well balanced. The closed-back 140s have a similar sound, maybe a bit boxier, overall, as is typical of closed cans. I think that some folks (such as heavy rock n’ rollers, rappers, computer gamers, the hearing impaired, and even office workers) might prefer the 140s for their enhanced isolation, but I found the 130s, which offer the spacious open-back sound that made Senn famous, to provide the flatest, truest sound, overall. After a lot of back and forth listening to verify my impressions, I kept the 130s. The 140s would be a perfectly acceptable alternative, though. The differences are minor.

Both models are cushy comfortable, and the features and controls are top-notch. I’ve never liked surround-sound simulations and the like, so I can’t comment on that feature (130s). But I find everything very simple to use, and all works fine. Like easy? Hang these Senns up and they turn off and charge automatically. Press a button and they tune their reception and then memorize it, also automatically. The reception’s very good, too, after I improved it significantly by moving the transmitter unit to a slightly higher shelf and trying the different freq-channel options. Remember this if you buy. Also remember to boost the source volume plenty so that the phones receive a strong signal. (By the way, I’ve read that you may experience greater interference noise if you live in a congested area. I don’t.)

DISLIKES

No review would be complete without some criticism and warning, so here’s mine. Above all, choosing musical equipment involves personal tastes, which vary greatly, so try to listen before buying. Trust your own ears. If you do buy either Senn wireless model, you should expect some hiss and pop and hum at times, usually just when you move around, but almost certainly if you head outside or into another room far from the base unit. (The stated spec of “up to 150 meters” seems laughable.) You may even notice the sound strengthen and weaken on occasion. In this price range, at least, I think you’ll need to accept such reception problems or else stay with wired cans. Period. Wireless freedom is never perfect, is it? Beyond that, I wish these cans were as snug-fitting as my Senn 280s, which grip my head tightly. These wireless phones are like light pillows, very comfortable since they sit ‘around’ the ears (not ‘on’ the ears), but I’d bet that some folks with smaller heads could find them to be a bit loose when walking around. And finally, another obvious point–bad or good, depending on your situation–is that the 130s (which I prefer in terms of smoother, truer sound) are open-air cans, meaning that you’ll hear your family if in the same room. That’s good for staying in contact but bad if you want to get away from outside noise. The closed 140s are certainly better for blocking out a barking dog or not disturbing a nearby loved one.

COMMENT ABOUT INTERFERENCE PROBLEMS

If you’re not already totally sick of me, you can check out my reaction to the interference problems that some users report here. (Click on ‘Comments’ below.)

OVERALL

All in all, both models of these phones admirably meet my picky expectations although being realistic about the limits of low-cost wireless sound was a necessary starting point. Nah, these wireless phones aren’t perfect, and they’re certainly no match for good wired cans, but I think they offer impressive overall performance for $100 plus change. An enthusiastic ‘4 and a 1/2 stars’ and a lot of brag from me. Well done, Senn. Happy listening, all.

P.S. TO ANYONE WITH HEARING LOSS

If you have reduced hearing, particularly in one ear, you should probably choose the RS-140 model. The addition of the closed back (for isolation), L-R balance control, and compression switch (to equalize the overall volume) could be helpful.

NEED MORE RESEARCH?

Head over to “Consumer Search” online for a master summary of pro and consumer reviews of wireless headphones, including these. (The Senns do very well.)

UPDATE

A quick 2009 update, more than three years of almost daily use later: no surprises, no regrets, and the original batteries are still kicking. I stand by my review fully. I did find one time that the headphones didn’t work, but a quick jiggle of the audio input in the base unit brought them back to life. True, as some folks have noted, there is indeed annoying interference at times but usually just when moving around in another room or outdoors. That’s only a minor limitation for me but clearly a deal-breaker for some people (although some of them, I suspect, haven’t boosted the source volume enough). But the surprisingly good music quality and thoughtful design at this low price point is the real story here for me and my primarily musical needs. If you eventually decide to give the Senns a try, just be sure that you can easily return them if they don’t fit your own needs and limits. I typically return about half of the audio equipment I buy, even after thorough research, and have learned the value of a simple return policy. Good luck to you.

DISCLAIMER (SUMMER 2010)

I notice that the price has nearly doubled since I wrote my review, and that would change things for me. If I had this much to spend on wireless cans, I’d likely opt for Senn’s new RS-180 model instead.

Drew S.June 25th, 2010 at 2:22 pm

Review submitted by Drew S.
Author’s Rating:
To begin with I live in a very busy area in NYC and in my home I have a 3 system wireless computer network, 2 wireless phones, wireless PS2 controllers, wireless Xbox360 controllers, 3 cellular phones and now I have added 2 Sennheiser RS 130 headsets. You can imagine I was concerned with interference, popping and static especially after reading some of the reviews of the 130’s on this site.

To be very honest it was anything but the case. Amongst all the wireless items in my house I get crystal clear sound with little to no problems. The signal strength on the head phones is phenomenal as I can even take the trash out and not miss a word from my TV shows. The sound quality is just as good as my wired headphones and the head phones all though large are very comfortable and after hours of wearing them I hardly notice there still on.

I have had the headsets for close to two months now and on the very rare occasion that I hear static all I do is hit the scan button and the problem is solved. The only technical issue I had with the headsets was during the initial setup. When using both headsets at the same time the set in my basement entertainment room was picking up some of the signal from the head set a floor above in my bedroom. This only occurred when I had the head sets on channel 1 and channel 2. To resolve this issue I set the basement set to channel 1 and the bedroom set to channel 3 and I have had no issues since.

My only other issue besides that is just as others stated with the poorly placed volume knob that occasionally gets moved when I shift my pillow in bed. It doesn’t occur enough to put tape over the knob but if it did that would be my solution as it’s a small inconvenience and doesn’t justify not purchasing a great wireless headset.

Overall I love the headphones! They are a phenomenal buy and at around half the cost of the Best Buy price you can’t go wrong buying them off Amazon. I never write reviews but ive been so happy with my two 130 headsets that I felt I needed to share so others could also join the wonderfull experience.

C. Scott SmithJune 25th, 2010 at 3:02 pm

Review submitted by C. Scott Smith
Author’s Rating:
The Sennheiser RS130 headphones really are truly a great product. I placed the base on top of my big screen and have the unit plugged into my headphone out on my receiver. It only took a moment to make the proper adjustments and now I can hear crystal clear audio anywhere in and outside of my house. I haven’t really tried to see just how far they will go, but I know I have a big corner yard and the sound remains very clear to at least the edge of my yard.

My main reason for getting these was not to listen to music though. I am a bit of a night owl and really tired of my wife and children griping at me to turn the TV down at night. AND, I want to watch my movies in surround. The surround option on the phones is just ok. I have never been a big fan of SRS surround, but I am sure there are some people who like it. I use my receiver’s headphone surround option and the headphones sound fantastic. I get a nice large sound stage that really takes you out of your head.

The only downside I have, and the very slight knock on these is that after you listen for a long time the headphones get a little hot around the earpieces. I am referring to the fabric, and not the electronics though. And, the cooler your room is the less noticeable this is.

One other slight knock — if your source material is extremely dynamic, like an action DVD, you need to enable the midnight compression modes on your receiver if you are going to listen to it in surround mode. The quick, high dynamic ranges can cause just a little bit of distortion — this is not evident at all though in plain stereo mode though.

I also love the open design. As long as I am not listening at full blast I can easily hear my wife or kids call me from the other room, and can conduct conversations without having to take the headphones off.

The battery life is also great, I have yet to come close to running the battery down, even with using the RS 130’s all day.

Until a manufacturer produces an affordable wireless headphone solution with true Dolby Digital and DTS surround decoding these are the best your going to get — And you will fall in love with these headphones and not want to ever give them up.

Robert DerenthalJune 25th, 2010 at 3:37 pm

Review submitted by Robert Derenthal
Author’s Rating:
My hearing isn’t as good as my wife’s, so to end the hassle of trying to find a TV sound level that we can both live with, I bought these headphones.

On the positive side they produce relatively good sound that carries a long distance. You can trot off to the kitchen or bathroom and hear the TV all the way. I also love the way you recharge these by just hanging them on the rack on the transmitter. The volume control is also a must have.

On the negative side I find periodic static – every couple of minutes – whenever I use them, and I sit about 12 feet away from the TV set. My feeling is that their primary usefulness is in watching TV. When I use my stereo system to listen to music I use the speakers or another set of cabled earphones.

It was hard for me to rate this product as I do find the phones to be quite useful. On the other hand I would not use them for music. I have two other Sennheiser cabled headphones sets that I paid roughly $40 and $170 dollars for. Both of them provide much better sound than the set being reviewed.

G. GellesJune 25th, 2010 at 3:55 pm

Review submitted by G. Gelles
Author’s Rating:
I purchased this item primarily for use when viewing TV and movies. It very effectively blocks outside noise such as the air conditioner which was my main intent, but I also found the quality of the sound was so good that I was able to clearly hear low spoken conversations and subtle background sounds that I would have otherwise missed.

There is a “surround” button, which for me, just seems to add a level of reverberation and does not significantly add to the overall quality, so I leave it turned off. Others may find this a nice feature.

I found the earpiece padding to be fairly comfortable and can easily be worn over eyeglasses without any problem. Having the on/off and volume controls on the earphones is very convenient.

Soon after I received the headphones, I ordered a second set. I was pleasantly surprised to find out that both headphones can work off of one transmitter. This enabled me to hook one transmitter to my cable box and the other one to the DVD player. To me this is important, since the quality of the sound from the TV audio out jacks is not nearly as good as the audio out from the Cable box and DVD player. It therefore, eliminates the need to swap cable connections to achieve the highest quality sound.

Overall I am very pleased with this item and would highly recommend it.