The E-Protect Audio sticker does not block electromagnetic radiation. However, it can help neutralize electromagnetic radiation to support your well-being and better protect you from its negative effects. It's impossible for an E-smog protection sticker to block electromagnetic radiation. Therefore, neutralization is the only effective "shield" against electromagnetic fields. The E-Protect Audio sticker is thus an anti-E-smog sticker in the sense that it can protect you from radiation emitted by Bluetooth or Wi-Fi, but it does not block radiation. This is important because if the electromagnetic fields were blocked, your wireless Bluetooth headphones might no longer function properly. This also means that the anti-E-smog effect cannot be measured with an electrosmog meter. However, the effect can be demonstrated through physiological tests of your health parameters, such as heart rate variability (HRV) measurements, during product use.