[99% EMF/EMR PROTECTION] — This great Samsung Galaxy S10 can provide a full body protection for your iPhone, and protect your health by reducing the harm from 99% EMF/EMR. [NEVER AFFECT WIRELESS CHARGING] — The emf protection cellphone case is so light and thin, and it does not affect wireless charging. [NEVER AFFECT SIGNAL QUALITY] — It without interfering with Samsung Galaxy S10 Phone reception, function or battery life. [FUNCTIONAL CERTIFICATE] — Being verified by the laboratory, the anti radiation shield installed in the Samsung Galaxy S10 Case can effectively reduce the harm of mobile phone radiation to the human body. The black energy ring on the back of the case is made of natural energy stone (lava). When you pick up the phone, it can produce negative ions and promote blood circulation. [FREE LIFETIME QUALITY GUARANTEE] — If you encounter any quality problems, please contact us as soon as possible. We will free to offer a full refund or send you a new Samsung Samsung Galaxy S10 Case within 48 hours.