Some scientists have reported that the RF waves from cell phones produce effects in human cells (in lab dishes) that might possibly help tumors grow. However, several studies in rats and mice have looked at whether RF energy might promote the development of tumors caused by other known carcinogens (cancer-causing agents). These studies did not find evidence of tumor promotion.
Safe Cell Technology is created out of unique material that is permanently encoded with specific signals or frequencies designed to interact with and change the quality of the electromagnetic field (EMF) emitting from cell phones. It converts the electromagnetic energy into low level infrared energy acting as a cell phone radiation protection shield drastically reducing the harmful effects of cell phone radiation.
If you want to measure the EMF radiation from your own phone, and know if EMF protection products are working, you should get a quality EMF meter. I highly recommend the new TriField TF2 (read my review) as it’s simple to use, lasts forever, is extremely accurate, and measures all three types of EMF radiation. If you’re looking for a low-cost EMF meter I really like the Meterk (read my review).
SafeSleeve for the iPhone 6 and 6s is the industry leading cell phone radiation protector. Our anti-radiation shielding technology has been tested in an FCC certified lab to block over 99% of RF radiation and over 92% of ELF radiation. Simply open the flap to answer, and re-close when speaking to be protected from potentially harmful radiation. The technology will also block radiation when storing in your pocket, just position the front flap to face your body. Rugged and double protective case includes an inner silicone shell to hold your phone in place and a reinforced outer case with magnetic latch to hold it closed. Convenient built-in cell phone case wallet allows you to carry up to 4 cards and/or cash with RFID protection. Leave the bulky wallet at home and carry everything in one lightweight package. Enjoy the peace of mind of knowing you are protected by lab tested shielding technology with the added convenience of a built in case, RFID blocker wallet and stand!
DefenderShield Cellphone Radiation Case also claims independent testing and says in their website: That a "sophisticated layering of separate non-toxic, human safe materials processed for maximum radiation blocking efficiency. Each material has unique and targeted radiation-shielding characteristics designed to work in unison to eliminate all radiation emissions from 0 to 10 GHZ and Defender Shield technology refracts, conducts and finally absorbs all these potentially harmful emissions."  In this demonstration, the radiation level measured when DefendeShield case was on is still quite a bit above the level of exposure that I would recommend. I personally do not recommend-holding a phone with a shielding case to your head as the DefenderShield website shows a young woman doing as she demonstrates the product. 

Could you please provide me with evidence that non-ionizing radiation is damaging to humans? In another post illustrating the threats of non-ionizing radiation you have said that this radiation is damaging to children, and link an article by the American Academy of Sleep Medicine. However, this linked page contains no mention of non-ionizing radiation, and instead suggests that children are simply addicted to use of mobile phones, thus using them instead of sleeping. You also provided a link to a PubChem page on the negative effects of this radiation, but this page appears to no longer exist.
The energy of electromagnetic radiation is determined by its frequency; ionizing radiation is high frequency, and therefore high energy, whereas non-ionizing radiation is low frequency, and therefore low energy. The NCI fact sheet Electromagnetic Fields and Cancer lists sources of radiofrequency radiation. More information about ionizing radiation can be found on the Radiation page.