While home testing is an effective way to verify our claims for most of our products, it will not work to verify the shielding effectiveness of the SYB H.A.R.D.

This is because the emissions from the phone itself (rather than through the headset wiring) would throw off the results of such tests. In other words, the phone is such a powerful source of EMF, that it is impossible with a consumer-grade EMF meter to isolate whether the radiation it detects is coming from the phone or the headphone cable when all of these elements are in such close proximity.

If you are interested in learning more about testing our  products, please feel free to download this free ebook: http://bit.ly/2rdNuog