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Pristine audio experience based on Sony MDR-D777LP Altus headphone form factor
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Technical Details
- 40mm headphone driver units with Neodymium magnets- Auranomic design on the earpiece from w/in the earpiece
- Stand by time approx 200 hours
- Rechargeable function
- Remote control within the earpiece
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By R. Perkins (Nashville, TN United States)
I purchased these for my office computer. I also picked up a 20$ bluetooth usb adapter. I've been using these for about 2 weeks now and have been very happy with their performance and sound. I updated over some 5-7 years old RF wireless Sennheiser headphones. I don't understand why they haven't produced a bluetooth set yet, but that's okay, these sound amazing. Pairing was easy after reading the directions. One thing, if they sound really crappy when you first get them in sync, you need to make sure that you have your profile set to A2DP. After making that fix, I have been a really happy customer.
By Aleksandar Milivojevic (Santa Clara, CA USA)
I used the headphones for few days. For most of the time, they worked great. The range is nothing spectacular (as to be expected for bluetooth device), however still completely acceptable. Sound quality is good, and they seem to be very comfortable.
The only downside is that if you are using several bluetooth devices such as bluetooth keyboard or mouse, you will experience a lot of drop offs while listening to music as soon as you start moving a mouse or typing on the keyboard. On the other hand, when paired to my mobile phone, it worked just fine (there's no other bluetooth devices actively in use by phone, I would guess). I guess A2DP is maxing out available bluetooth bandwith, and that the problem is limitation of bluetooth technology itself, and not of this particular device.
AVRCP (playback controls) did not work at all with Apple Mac OS X, however it worked perfectly with Android based cell phone (HTC G1). One warning for iPhone users, something that I found out the hard way, A2DP is not supported on 1st generation iPhones. These headphones (or any other stereo bluetooth headphones) can't be used to listen music on those. You'll need at least 2nd generation or later iPhone (at time of this writing, 3G or 3G S models). I have 1st generation iPhone, so I can't comment if AVRCP works on iPhones (though, I'm kind of skeptical it works, since iPhone's OS is OS X based, and controls did not work when I had headphones paired to my Mac).
Update: All AVRCP controls actually worked as expected under OS X. However, reading iPhone forums, it seems iPhones support only play/pause functionality. However, given that it works on OS X, there's hope full AVRCP support will be available in the future on iPhones too.
By George Wood (Sweden)
When it worked, the sound was very nice, and the headphones were very comfortable. But I found three major flaws in this unit:
Audio was constantly breaking up. This didn't just happen when listening to radio stations via 3G, it also happened when I was listening to mp3 podcasts stored on my cellphone. Every now and then a couple of minutes might go by undisturbed, but sometimes every sentence was broken up.
Pairing didn't take. Pairing itself was easy, and my cellphone showed the device. But every time I turned on the BT-50, I more or less had to pair it with my phone from the beginning. (This however only took a few seconds, so I could have lived with it, except...)
The sound from the microphone was apparently very distorted. Poor mike sound was the reason I gave up my previous headphones and bought the BT-50. But the very first call I received, the caller could hardly understand what I was saying, so I had to burn the headphones off to complete the call. That was when I knew I had to return it to the store...
By K. NIRUDHODI (Fremont, CA USA)
I bought Sony DRBT50 head phones two years back. I was really amazed by sound quality of this headphones as this was as good as wired ones plus freedom from wires. I am using them regualrly for my gym and week end hiking. This set is working perfect for last two years and I think it will go on. I use them with my Sony Ericsson W550 phone. Batteries of this set is amazing as even after two years one full charge lasts for 7 to 8 hours of play (I normally charge them once in a week). Microphone quality is not that great but I dont care about microphone as I use it primarly for listening music while working out.
By Megan
I tried this headphone in an office environment where we can make phone calls from our PCs.
When listening to streaming music and news these headphones were great. The sound quality had just the right mix of base and treble. The A2DP profile had no crackle and overall was flawless.
My only problem with these headphones was in using the microphone. Since it isn't on a boom it is omni-directional. Often this lead to callers hearing my colleagues more than me, and issue with our phone software modifying volume levels automatically because it thought I was speaking. Therefore, I wouldn't recommend this headphone if you need to use the mic anywhere that might be in the slightest bit noisy. That said, the mic did pic up everything it could.
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