Q)The volume goes up and down without user intervention.
A)The headphoenes is tryng to compensate a too high input volume by lowering it when it would be clipped. To resolve it turn down your input volume.
Q)I hear static, pop or simply noise in SOME points.
A)A)The headphoenes is tryng to compensate a too high input volume by lowering it when it would be clipped, but without success. To resolve it turn down your input volume.
Q)I hear static in the background.
A)The input volume is too low. Try increasing it carefully. if the source input is very dynamic, with silences and very strong sound explosions it may seems difficult, but is always possible.
Q)The range is very limited.
A)Try moving the transmitter even by only 10-20 cm, often works.
Q)The battery last only 3 hours
A)It's true. But in Italy, at my local reseller, I have paid 10 euros for every additional battery (1 euro=1 dollar), and 20 euros a small additional 2 battery charger , so with 3 battery I can rotate them and get a 9 hours a day autonomy, which I think is enough for everyone.
Sorry for my english.


Best among 900MHz headphones   August 8, 2003
 63 out of 64 found this review helpful

Sennheiser RS-85 is by far the best among all the 900MHz headphones I tried. I stayed away from 2.4GHz because I have other 2.4GHz devices. My experience tells me 2.4GHz devices always interfere each other.

The first pair I tried was Sennheiser RS-45. Its sound quality was just acceptable, but the biggest problem was it's not very comfortable.

The second pair I picked up was Sony MDR-RF975RK. It's got some decent reviews online but I had a lot of problems with it. First of all, you don't want to be seen wearing them because the appearance is ridiculous. Then there's the endless static noise, hissing sound, even when you are sitting right in front of the transmitter. And forget about listening to anything other than loud music because otherwise the background noise would become too irritating. It has some upside such as long battery life and auto-shutoff feature, but they in no way offset its problems.

I also tried a few more 900MHz headphones at stores. All of them have major problems, mostly static noise.

Then I bought RS-85. This pair is amazing. It delivers the clarity of wired headphones as long as you are reasonably close to the transmitter. When I'm not in the same room as the transmitter I can occasionally hear skip of sound. The skips are usually less than one second long. But one thing for sure, you never get any static noise. The sound compression becomes noticeable when listening to music with high dynamic range at high volume, but it has never become a big problem for me. The ear cushions are relatively comfortable, not as good as HD-600's but no complaints. The battery life is only 3 to 4 hours long on each full charge, but RS-85 comes with a second battery and you can rotate between the two. Overall I'm very happy with this pair even though it's a bit pricy.


Bought it to hear DVD when the neighbors are home.   November 15, 2001
 33 out of 37 found this review helpful

Set up and plugging in is easy (power and 2 RCA's in the back of my surround sound reciever for me.) The book is a "little" unclear of what is what. Just yank the two battrey packs out and insert them into the charging stand, and wait 24 hours. After that, you can put the headphones on and listen.

The radial dials are not very intuitive. Tuning and volume are alike, so you have to watch how you put the heaqdphones on. Once on, they sound very good. Not the deep base from top end "over the ear" headphones, but good. The volume goes high enough for fun and exercise, but just barely.

It fulfills my intended desire, to listen to movies and music when I can't turn the surround sound system up, and it is wireless an doesn't "fuzz" out, so that is good. The headphones worked upstairs, in the basement, and about 40 feet outside with no changes in sound, mostly. A solid product that doesn't perform great, but does what it supposed to.


Good.   July 2, 2004
 30 out of 31 found this review helpful

When I first researched this product, I was impressed by the positive reviews. There were, of course, a few negative reviews which focused on interfearance, etc. I decided to take a chance and buy this product.

Overall? I'm satisfied. The sound quality is excellent. Top knotch. I've placed the base in my basement, next to two CRT monitors and a whole lot of transformers, and I recieve little to no interfearance. If I walk around upstairs, they will occationally pop or crackle, but never for long. My only real complaint is that they seem to get suddenly softer for a few seconds, and then increase in volume. I'm sure it's not the signal strength, because it happens even when my head is perfectly still sitting next to the trasnmitter. But i'm now noticing it less and less.

Bottom line, if you're looking for a great pair of wireless headphones, and are willing to accept the fact that "wireless" will never work perfectly, by all means, buy this product. Dont buy this product expecting them to behave as though they have an invisible wire of infinite length connecting them to your stereo.


setting the record straight   December 10, 2002
 28 out of 31 found this review helpful

I wanted wireless headphones to listen to movies and play PS2 games when the kids went to bed. Let me set the record straight. These things work great. I was hesitent because of all the bad reviews. I ordered anyway. Boy was I glad I did. They work all throughout my house (3 diff. levels). Best performance is in the TV room, but they still allow roamimg to different rooms while listening to a movie. Sound quality and volume are both very good. They are plastic, but what isn't these days. With a little care they should last a long time. I use them w/ a 2.8ghz wireless PS2 controller, and have 3 900 mhz
phones, as well as a 2.8ghz phone. I have no interference whatsoever. I have an home theater system that is better, but these allow me to crank-up the volume when the kids are sleeping.
They are pricier then some, but I am a firm believer that you get what you pay for (normally). The instructions were sparse, but still easy to plug in and use without any problems. I have never tried any other wireless headphones, but do give these high marks. By the way, I am typing this with a wireless keyboard/mouse. I have no interest in this company, but am finally getting sick of reading horrible reviews on products that do not deserve it.