I was looking forward to getting these, because I sleep with my earpones in.. I wanted some wireless bluetooth ones so that I could not strangle myself with the wires. I do all my meditation at night.
These are great for using as bluetooth headsets individually with your phone, but not together. You can only have one on at a time. However having said that, these are super light and easy to wear, and suprisingly easy to keep in your ear. I have even slept with one in and not lost it. I love that the case is a charger for both of the ear pices, and also has a USB plug for charging my phone. The case makes it really easy to take these with me wherever I go.
So no I can't use them to listen to music, but they are handy to have when one quits I can put it in the charger case and put the other one on!