PROTECT THE FUTURE WITH THE BEST All kidding aside this is an extremely important issue. The BALL WALLâ„¢ Cell Phone Radiation Protection Case for cellular devices blocks up to virtually 100% of harmful EMF cell phone radiation from the face of your cell phone. This handcrafted case utilizes state-of-the-art radiation-shielding technology in the front cover while offering a soft microfiber interior and elegant faux leather exterior resistive to scratching, staining and the accidental drop. BALLS!! Cell Phone Radiation Affects Sperm Quality Men, beware: Using a hands-free device with a cell phone may affect your fertility if you keep your phone close to your testicles, Cleveland Clinic researchers warn in the journal Fertility and Sterility. To arrive at their findings, researchers collected semen samples from 32 men and divided each man's sample into two parts. They placed half of the semen samples 2.5 centimeters away from a 850 MHz frequency cell phone in talk mode for one hour. Most cell phones used in the U.S. are 850-900 MHz. They chose this distance because it is the typical distance between the testes and the trouser pockets. Men who use these hands-free devices tend to carry their cell phones in their pants pocket or clipped to their belts at the waist while in talk mode. As a result, they may be exposing their testicles to damaging radiofrequency electromagnetic waves, explains Ashok Agarwal, PhD, head of the andrology laboratory and the director of the Center for Reproductive Medicine at the Glickman Urologoical and Kidney Institute at the Cleveland Clinic in Ohio. "The Bluetooth devices, which many people are using these days because of health or safety concerns, may not be always so safe. There is a downside," he says.