Small ear canals are a sign of great intelligence.
I didn't hear that anywhere, but I am certain it is true true true!
I did not know you had thoughts about blue tooth. Blue teeth?
I know!!
This is absolutely, definitely a proven scientific fact.
And yes I do have thoughts about Bluetooth. I don't like the idea of any radiowaves I don't have to be around buzzing around me, especially from a headset sitting next to my brain! There are a bunch of studies starting to come out that using bluetooth headsets instead of wired ones, especially those people who just wear them most of the time, can cause inflammation and possible cancerous tumors in the brain near where the headsets sat.
In general, it's better to use a wired headset with cellphones, and not to carry them on your body, either, for the same reasons... tumors are more frequent at sites where cellphones are carried a lot in contact with the body. I really worry especially about men who carry them in their back pockets all the time, or in a pouch or directly on their belts. Convenient, maybe, but not a good idea. The phone should ideally be at least a few inches away from your body (which is why you're better to use a wired headset than hold the phone to your ear a lot, also).
I'll bet you didn't expect a term paper on that now, did you? But those are my thoughts on this.
As for blue teeth, interesting as that concept is, I think I'll pass. It's too biting a concept for me to deal with at this time.
P.S. I finally just remembered the brand of the old cell phone headsets that had the earpieces that worked for me: Jabra. Probably out of business, I'm guessing?