I have been using the Erchonia R2Ls since they first came out and have been recommending them to patients for years. When you look at the research done, you can see the objective measurements showing a drop in the EMR levels. Some brands of phones give off higher amounts than others and will be much more active when browsing or streaming. The biggest activity is with VR goggles! The R2L lights up constantly when the phone is used in the Samsung Gear VR. It is definitely worth the small cost of the product to reduce your exposure. Plus, they usually last the life of the phone, so quite are durable.
Bottom Line: Yes, I would recommend this to a friend