Step 1: Purchase Bluetooth Adapter
You'll need to buy a Bluetooth adapter. I got mine on ebay like this one. There are many different kinds. They behave like most Bluetooth headphones do. start/stop, volume, skip etc. It'll need a standard headphones port 3.5mm (and I really haven't seen any that aren't).
This will expire of course, but like this: http://m.ebay.com/itm/Jumbl-Bluetooth-4-0-Hands-Free-Calling-A2DP-Audio-Streaming-Adapter-Receiver-/172325405632?nav=SEARCH
Step 2: Buy Short Stereo Aux Cord
You'll need a short cable just like the one the Beats came with. I have one similar to this: http://m.ebay.com/itm/Stereo-AUX-Cable-Male-to-Male-Right-Angle-Auxiliary-Audio-Cord-3-5mm-1-8-Adapter-/111521764325?nav=SEARCH
Step 3: Couple Zip Ties.
Grab a couple Zip Ties and you're done! My wife was getting sick of replacing the cables all the time, but she is loving this now.
This is probably a good alternative or solution to any headphone-less cell phones.... ;)