Convert wired headphones to bluetooth
Nov 28, 2013 at 10:23 AM Post #31 of 37
Oh, and it's for use with a celphone...for communications, not for music listening (I know, sacrilege).   I see after a little reading that this forum's mostly focused toward hi fidelity sound, but I've gotten no results elsewhere.
 
Sep 23, 2014 at 7:39 PM Post #32 of 37
VOXOA is working on something like this, directly plug in to headphones and make it wireless.
 
Dec 14, 2014 at 4:39 PM Post #33 of 37
Here's what I did.
 
Audio Technica ATH-M50 Stereo Bluetooth + Mic + Removable Cable Mod.
Add one part removable cable mod;
http://www.head-fi.org/t/553483/ath-m50-removable-cable-mod
 
One part sacrificial Soundbot SB220 Bluetooth circuit board and microphone;
http://www.amazon.com/SoundBot%C2%AE-SB220-Bluetooth-Noise-Reduction-Headphone/dp/B00CBNG10C
 
And one part Shure HPAEC940 replacement velour ear pads
http://www.amazon.com/gp/product/B005OM06RG
 
And you get one very happy headphone owner.
The intent of this modification was to create a highly portable, cabled or Bluetooth headphone, that uses the fantastic speaker drivers of the ATH-M50 headphone.  To accomplish this, I retrofitted the Soundbot SB220 into the left ear cup shell.
 
The modification did not go entirely as planned, as I had originally wanted the buttons to be more inside the shell, but there was just no way to do it, so I started going at the case with a hot soldering iron. 
Additionally, I thought I’d be able to run the battery over the head band and to the right ear cup case, but that was going to be a far and away a more significant hurdle then I originally thought.
 
For the wiring, I discovered that regular 24 gauge multi-strand wire was still far too large and cumbersome to work with.  I had sourced some of these years ago http://www.amazon.com/Vktech-Micro-Retractable-Charger-Cable/dp/B00DQMHM14 (Micro-Retractable Charger Cables) and the ultra-miniature wires played a huge role in the ultimate success of this project.
I then 3D printed and attached a flexible button pad and usb-charger cover.
Results;
 
The headphones are a tad left heavy, but once on my head, it’s entirely unnoticeable.  The sound quality of the Bluetooth unit blew me away in comparison to the Soundbots original configuration.  Now, while the Bluetooth unit does not allow me to use my headphone amp anymore, I do not see the need for it (and all those wires!)  Yes the headphone amp makes things sound far and away better, and I can (and do) go back to it when I really want to jam out.   But for at work, or *cough* while driving, this Bluetooth mod was worth it.
One note, the phone call quality is fantastic.  The party on the other end tells me I sound fantastic and they have no idea that I am on a Bluetooth headset.
I'd love to attach the eight pictures I prepared, but this forum does not allow that.  In fact, it took just past two weeks of access to even be allowed to post replies, so... phooey on you all. 
 
Feb 11, 2016 at 12:12 AM Post #36 of 37
I don't know what you're listening to but I've never heard a better headphone or earbuds than Bose produces. Pretty much everything they make sounds beautiful. I surely do hope they come out with something similar to Powerbeats2 Wireless. That's the only reason I'm holding out. If Bose doesn't get in the wireless game with earbuds, I'm going to have no choice but buy a pair of Powerbeats2 Wireless which I've seen a lot of mixed reviews on their sound quality and lack of quality made products. There are a tremendous amount of reviews everywhere with people complaining about their Powerbeats2 failing a few weeks to a few months. We shall see what Bose does in the next couple months.
 
May 30, 2016 at 8:31 PM Post #37 of 37
I got an idea. So you know apple earbuds right? Ok how about that compact and without the wires? If you want that get back to me thanks.Me and my high school friends are designing prototypes
 

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