I'm going to stay away from the external speakers for now. Mostly because of cost. A buddy recommended a specific bluetooth headset that I'm going to try later on when the weather warms up enough to wear my half helmet. In the meantime, I remembered that a few years ago, me and a friend bought the Chatterbox GMRS X1 Bluetooth units to talk to each other. We have since went our seperate ways and it's been in a box ever since. I charged it up last night and synched it to my iPhone this morning. Worked great with the FF helmet! It's big and bulky attached to the side of the helmet but, I don't physically notice it while riding. Since I ride to "get away" and don't care to talk on the phone while riding, I ordered a set of headphones similiar to the headset but, without the mic and I'll plug them into the audio jack. I'm liking this setup so far!