I have a pair of jaybird x3 Bluetooth earbuds that I love for the gym, but I can't use them for running.
Like most competing products, one of the key marketing points of the x3's is that they block ambient noise. While this is great for indoor activities, I find it to be very hazardous when running.
So, to tag on to the OP's thread, can someone recommend me a pair that are Bluetooth which also let in a fair amount of ambient noise? Sound quality isn't all that important to me while running, so don't go all audiophile on me about Bluetooth's bandwidth limitations.