There is significant research showing the EMF exposure can have adverse health effects. My biggest symptom is tinnitus or ringing in the ears. I know that using a cell phone negatively affects my hearing. So the thought of having Bluetooth in hearing aids seems absolutely ludicrous to me. I show the readings I got from a pair of hearing aids in this video. This is the meter I used: https://safelivingtechnologies.com/cart.php?action=add&sku=SLT-1440&couponcode=WHBH-5 You can see my review of that meter here: https://youtu.be/02yCFNv0gtQ The Phonak M10 hearing aids do not have Bluetooth. You can get them at Costco, or look up more of their options online. If you know of another brand that does not use Bluetooth, please share it in the comments! Cathy Cooke Whole Home and Body Health