Repeated Wi-Fi studies show that Wi-Fi causes oxidative stress, sperm/testicular damage, neuropsychiatric effects including EEG changes, apoptosis, cellular DNA damage, endocrine changes, and calcium overload. Each of these effects are also caused by exposures to other microwave frequency EMFs, with each such effect being documented in from 10 to 16 reviews. Therefore, each of these seven EMF effects are established effects of Wi-Fi and of other microwave frequency EMFs. Each of these seven is also produced by downstream effects of the main action of such EMFs, voltage-gated calcium channel (VGCC) activation. While VGCC activation via EMF interaction with the VGCC voltage sensor seems to be the predominant mechanism of action of EMFs, other mechanisms appear to have minor roles. Minor roles include activation of other voltage-gated ion channels, calcium cyclotron resonance and the geomagnetic magnetoreception mechanism. 
Also of note, in a study by Henrietta Nittby et al (2009), the lowest exposure SARs were worse than the higher SAR exposures. Some scientists consider blood brain barrier effects at these very low levels of radiation exposure (i.e. 30-45x lower than the ‘Top 10’ lowest SAR phones ranked by the Environmental Working Group) to be of equal or even greater concern for the population than the increase in brain tumors from cell phone use that is expected.
“When symptoms are not addressed comprehensively– for example, using symptom amelioration without simultaneous elimination of exposure – cell membrane adverse reaction and damage continue to occur while the patient is assuming the cause of the problem has been eliminated. This lulls patients into a false sense of security, causing them to aggravate their exposures through the increased use of their wireless devices. When the damage reaches a critically harmful level, even the symptom amelioration can no longer be sustained by the damaged cells.”
The quality of the product is really good, just as good as the more expensive stickers I have purchased in the past. Its not a big deal, but the stickers I received are not star shaped. They are round/circle. I have been able to test them yet to see if they actually work. Waiting to see my brother who can test them for me. Will update this review when I find out.

The Working Group indicated that, although the human studies were susceptible to bias, the findings could not be dismissed as reflecting bias alone, and that a causal interpretation could not be excluded. The Working Group noted that any interpretation of the evidence should also consider that the observed associations could reflect chance, bias, or confounding rather than an underlying causal effect. In addition, the Working Group stated that the investigation of risk of cancer of the brain associated with cell phone use poses complex methodologic challenges in the conduct of the research and in the analysis and interpretation of findings.
It should be noted that the given values of SAR were normalized to 1 W peak antenna power output, while typically a WLAN antenna radiates about 10 mW; therefore, for a real world operating system, maximum SAR of 0.37 × 10−3 and 0.18 × 10−3 (W/kg) is expected for 2 and 1 active antennas, respectively, which are 104 times lower than the European safety limit (2 W/kg) [IEEE Standard for Safety Levels with Respect to Humans, 2005].
In April, the city of Berkeley, Calif., won a major decision in a federal appeals court, allowing the city to go forward with its ordinance requiring cellphone retailers to provide consumers with information about safe cellphone use. The court denied a request by the the mobile phone industry's lobby, CTIA-The Wireless Association, which had fought the city’s attempts to educate its citizens.

A group of 30 healthy volunteers, 15 men and 15 women, were given a simple memory test. First, the entire group was tested without any exposure to Wi-Fi radiation — no problem. Then, they were exposed to 2.4 GHz Wi-Fi from a wireless access point for about 45 minutes. During that portion of the testing, brain activity was measured and the women had a noticeable change in brain activity and energy levels. [8] Sorry ladies! But guys, don’t get too comfortable…

The present study was designed to investigate the possible DNA damaging effects of low-level microwave radiation (900, 1800, or 2450 MHz for 30 days) in brain of Fischer rats. Researchers demonstrated DNA damaging effects of low level microwave radiation in brain and concluded that low SAR microwave radiation exposure at these frequencies may induce DNA strand breaks in brain tissue.
When Carlo arrived, he was met by two seriously muscled men in plain clothes; the larger of the two let drop that he had recently left the Secret Service. The security men steered Carlo into a holding room, where they insisted he remain until his presentation. When summoned, Carlo found roughly 70 of the industry’s top executives waiting for him in silence. Carlo had spoken a mere 10 minutes when Wheeler abruptly stood, extended a hand, and said, “Thank you, George.” The two muscle men then ushered the scientist to a curbside taxi and waited until it pulled away.13

Just take a moment and think about how much you’re using your phone every single day. Answering calls, discussing plans, talking about your day with friends, playing games, watching videos and using apps, only scratch the surface of how much you’re actually using your phone. You might even have it by your bedside or on your nightstand when you go to bed at night. It’s time you stopped exposing yourself to dangerous EMF radiation and protected yourself from the dire consequences of using an unshielded smartphone or tablet.
Due to the relatively recent adoption of cell phones, the long-term safety of the technology cannot be determined conclusively and caution is warranted. Research on glioma brain tumors shows the average latency period is 20-30 years. [56] Although cell phones were introduced in 1983, it was not until 2003 that over 50% of the US population had a wireless subscription, so the 20 year mark for mass cell phone use has not yet been reached. [44] [71] The May 17, 2010 INTERPHONE study, the largest study ever to examine possible links between cell phones and brain tumors, concluded that overall there was "no increase in risk" for glioma or meningioma brain tumors, [57] but the average user in the study had less than eight years of cell phone exposure. [56] In his review of the INTERPHONE study results, Dr. Rodolfo Saracci stated that "none of today’s established carcinogens, including tobacco, could have been firmly identified as increasing risk in the first 10 years or so since first exposure." [58]
In the low dose, in the low intensity range we are dealing with biological effects which are clearly not linear to the SAR value, they are not linear to the energy transmitted and measured and communicated by the SAR value. So for the low intensity experiments, or the so called ‘athermal’ effects, we are very suspicious whether the SAR value is valid at all.”
The WHO began to study the health effects of electric- and magnetic-field radiation (EMF) in 1996 under the direction of Michael Repacholi, an Australian biophysicist. Although Repacholi claimed on disclosure forms that he was “independent” of corporate influence, in fact Motorola had funded his research: While Repacholi was director of the WHO’s EMF program, Motorola paid $50,000 a year to his former employer, the Royal Adelaide Hospital, which then transferred the money to the WHO program. When journalists exposed the payments, Repacholi denied that there was anything untoward about them because Motorola had not paid him personally. Eventually, Motorola’s payments were bundled with other industry contributions and funneled through the Mobile and Wireless Forum, a trade association that gave the WHO’s program $150,000 annually. In 1999, Repacholi helped engineer a WHO statement that “EMF exposures below the limits recommended in international guidelines do not appear to have any known consequence on health.”34

“In addition to protecting your phone from scratches and breaks, a basic case can help conceal a distinctive phone’s telltale markings. That’s a detriment if you’re trying to show off your handset’s badass styling, but a benefit for maintaining a lower profile. Note: Even though they look better, a flashy designer case is like sticking a “steal me” marquee on your phone.” – Jessica Dolcourt, Keep Your Phone from Getting Stolen (and What to Do If It Is), CNET; Twitter: @CNET