Back to the top


Welcome to our frequently asked questions page We have concentrated some frequently asked questions based on your emails.If you still have questions about cell phone radiation or any of our products contact us at any time.

General Questions About Mobile Phone Radiation

How is radio frequency energy exposure measured in epidemiologic studies?

Epidemiologic studies use information from several sources, including questionnaires and data from cell phone service providers. Direct measurements are not yet possible outside of a laboratory setting. Estimates take into account the following:

1.How “regularly” study participants use cell phones (the number of calls per week or month)

2.The age and the year when study participants first used a cell phone and the age and the year of last use (allows calculation of the duration of use and time since the start of use)

3.The average number of cell phone calls per day, week, or month (frequency)

4.The average length of a typical cell phone call

5.The total hours of lifetime use, calculated from the length of typical call times, the frequency of use, and the duration of use.



Why is there concern that cell phones may cause cancer or other health problems?

There are three main reasons why people are concerned that cell phones (also known as “mobile” or “wireless” telephones) might have the potential to cause certain types of cancer or other health problems:

1.Cell phones emit radiofrequency energy (radio waves), a form of non-ionizing radiation, from their antennas. Tissues nearest to the antenna can absorb this energy.

2.The number of cell phone users has increased rapidly. As of December 2014, there were more than 327.5 million cell phone subscribers in the United States, according to the Cellular Telecommunications and Internet Association. This is a nearly threefold increase from the 110 million users in 2000. Globally, the number of subscriptions is estimated by the International Telecommunications Union to be 5 billion.

3.Over time, the number of cell phone calls per day, the length of each call, and the amount of time people use cell phones have increased. However, improvements in cell phone technology have resulted in devices that have lower power outputs than earlier models.

The NCI fact sheet Electromagnetic Fields and Cancer includes information on wireless local area networks (commonly known as Wi-Fi), cell phone base stations, and cordless telephones.


How Much Radiation Does My Cell Phone Emit- SAR?

There is considerable confusion and misunderstanding about the meaning of the maximum reported Specific Absorption Rate (SAR) values for cell phones. SAR is a measure of the rate of RF (radiofrequency) energy absorption by the body from the source being measured – in this case, a cell phone. SAR provides an accurate method for measuring the RF exposure characteristics of cell phones to ensure that they are within the safety guidelines set by the FCC. Many people mistakenly think that using a cell phone with a lower SAR value necessarily lowers a user’s exposure to RF emissions, or is somehow “ more safer” than using a cell phone with a high SAR value. While SAR values are an important tool in judging the maximum possible exposure to RF energy from a particular model of cell phone, a single SAR value does not provide sufficient information about the amount of RF exposure under typical usage conditions to reliably compare individual cell phone models. Rather, the SAR values collected by the FCC are intended only to ensure that the cell phone does not exceed the FCC’s maximum permissible exposure levels even when operating in conditions which result in the device’s highest possible – but not its typical - RF energy absorption for a user .Taken from FCC website – Press to read

Does SAR show evrything?

The SAR value used for FCC approval does not account for the multitude of measurements taken during the testing. Moreover, cell phones constantly vary their power to operate at the minimum power necessary for communications; operation at maximum power occurs infrequently. Consequently, cell phones cannot be reliably compared for their overall exposure characteristics on the basis of a single SAR value for several reasons (each of these examples is based on a reported SAR value for cell phone A that is higher than that for cell phone B):

•Cell phone A might have one measurement that was higher than any single measurement for cell phone B. Cell phone A would, therefore, have a higher reported SAR value than cell phone B, even if cell phone B has higher measurements than A in most other locations and/or usage configurations. In such a case, a user generally would receive more RF energy overall from cell phone B.

• Cell phone A might communicate more efficiently than cell phone B, so that it operates at lower power than cell phone B would under comparable conditions. Consequently, a user would receive more RF energy overall from cell phone B.

• The highest value from cell phone A might come from a position which the user seldom or never employs to hold a phone, whereas that user might usually hold a phone in the position that resulted in the highest value for cell phone B. Therefore, the user would receive the highest RF exposure that cell phone B delivers but would not receive the highest RF exposure that cell phone A delivers .


All cell phones must meet the FCC’s RF exposure standard, which is set at a level well below that at which laboratory testing indicates, and medical and biological experts generally agree, adverse health effects could occur. For users who are concerned with the adequacy of this standard or who otherwise wish to further reduce their exposure, the most effective means to reduce exposure are to hold the cell phone away from the head or body and to use a speakerphone or hands-free accessory. These measures will generally have much more impact on RF energy absorption than the small difference in SAR between individual cell phones, which, in any event, is an unreliable comparison of RF exposure to consumers, given the variables of individual use.

How Can I reduce my exposure to RF radiation?


Some measures to reduce your RF exposure include:

• Use a speakerphone, earpiece or headset to reduce proximity to the head (and thus exposure). While wired earpieces may conduct some energy to the head and wireless earpieces also emit a small amount of RF energy, both wired and wireless earpieces remove the greatest source of RF energy (the cell phone) from proximity to the head and thus can greatly reduce total exposure to the head.

• Increase the distance between wireless devices and your body.

• Consider texting rather than talking - but don’t text while you are driving.

Taken from FCC website- press to read

What is"Radiofrequency" And Microwave Radiation?

Electromagnetic radiation consists of waves of electric and magnetic energy moving together (i.e., radiating) through space at the speed of light. Taken together, all forms of electromagnetic energy are referred to as the electromagnetic "spectrum." Radio waves and microwaves emitted by transmitting antennas are one form of electromagnetic energy. They are collectively referred to as "radiofrequency" or "RF" energy or radiation. Note that the term “radiation” does not mean “radioactive.” Often, the terms "electromagnetic field" or "radiofrequency field" are used to indicate the presence of electromagnetic or RF energy. Different forms of electromagnetic energy are categorized by their wavelengths and frequencies. The RF part of the electromagnetic spectrum is generally defined as that part of the spectrum where electromagnetic waves have frequencies in the range of about 3 kilohertz (3 kHz) to 300 gigahertz (300 GHz). Microwaves are a specific category of radio waves that can be loosely defined as radiofrequency energy at frequencies ranging from about 1 GHz to 30 GHz. Taken from FCC website – Press to read .

What Biological Effects Can Be Caused By RF Energy?

Biological effects can result from exposure to RF energy. Biological effects that result from heating of tissue by RF energy are often referred to as "thermal" effects. It has been known for many years that exposure to very high levels of RF radiation can be harmful due to the ability of RF energy to heat biological tissue rapidly. This is the principle by which microwave ovens cook food. Exposure to very high RF intensities can result in heating of biological tissue and an increase in body temperature. Tissue damage in humans could occur during exposure to high RF levels because of the body's inability to cope with or dissipate the excessive heat that could be generated. Two areas of the body, the eyes and the testes, are particularly vulnerable to RF heating because of the relative lack of available blood flow to dissipate the excess heat load.Taken from FCC website – Press to read

Can People Be Exposed to Levels Of Radiofrequency Radiation That Could Be Harmful?

Studies have shown that environmental levels of RF energy routinely encountered by the general public are typically far below levels necessary to produce significant heating and increased body temperature. However, there may be situations, particularly in workplace environments near high-powered RF sources, where the recommended limits for safe exposure of human beings to RF energy could be exceeded. In such cases, restrictive measures or mitigation actions may be necessary to ensure the safe use of RF energy. Taken from FCC website – Press to read


Do "HANDS-FREE" Ear Pieces For Mobile Phones Reduce Exposure To RF Emissions? What About Mobile Phone Accessories That Claim To Shield The Head From RF Radiation?

"Hands-free" kits with ear pieces can be used with cell phones for convenience and comfort. In addition, because the phone, which is the source of the RF emissions, will not be placed against the head, absorption of RF energy in the head will be reduced. Therefore, it is true that use of an ear piece connected to a mobile phone will significantly reduce the rate of energy absorption (or "SAR") in the user's head. On the other hand, if the phone is mounted against the waist or other part of the body during use, then that part of the body will absorb RF energy. Even so, mobile phones marketed in the U.S. are required to meet safety limit requirements regardless of whether they are used against the head or against the body. So either configuration should result in compliance with the safety limit. Note that hands-free devices using Bluetooth technology also include a wireless transmitter; however, the Bluetooth transmitter operates at a much lower power than the cell phone. Taken from FCC website – Press to read


Smart&Safe Products

How do Air Tube Headsets work?

This innovative stereo headphone, based on patented SAAT – Stereo Acoustic Air Tube™ – technology conducts the sound from your cell phone conversations and music through a hollow air tube without metal wires and reduces the electro-magnetic radiation reaching the users head by up to 98%. No metal wire, no radiation conduction.

Who checks our products to see if they really protect me?

Our products are checked, and double checked, by EMI Test Labs, which are FCC (United States), EMCC (Europe) and VCCI (Japan) approved and certified testing laboratories. You can find and download on this website the independent lab reports on each our products – Press Here So my electronics emit radiation? Is it really bad for me?Your electronics, such as your cell phone and laptop emit radiation in the form of Electromagnetic Radiation (EMR). There are thousands of doctors, scientists, and other field experts that link exposure to EMR to adverse health effects which you can read more about here.

Who checks our products to see if they really protect me?

Our products are checked, and double checked, by EMI Test Labs, which are FCC (United States), EMCC (Europe) and VCCI (Japan) approved and certified testing laboratories. You can find and download on this website the independent lab reports on each our products – Press Here So my electronics emit radiation? Is it really bad for me?Your electronics, such as your cell phone and laptop emit radiation in the form of Electromagnetic Radiation (EMR). There are thousands of doctors, scientists, and other field experts that link exposure to EMR to adverse health effects which you can read more about here.

How can I protect myself?

Either stop using your devices or simply get a Smart&Safe headset! All of our products integrate our FCC certified lab tested shielding technology to provide effective and convenient protection from all types of EMR.

What is the shielding material for the laptop tray, radblocker card, belt pouch made of?

Our shielding material is made of a lightweight, lead-free metallic alloy foil, specially engineered to block all three types of radiation emitted by your devices (ELF, RF and Thermal).




• We ship worldwide, shipping rate is 5$ to any destination.

How long is the delivery time?

•7-14 business days. Some times faster, sometimes a bit slower depending on mail service.

Does my package come with a tracking number?

•Yes. You will receive the tracking number after ordering.




With witch mobile phones is the air tube headset compatible with?

• Our Classic headsets work with every touch screen mobile phone in the world. If you do not have a touch screen - our jack is a 3.5mm universal jack.

• Our Bluetooth headset is compatible with any Bluetooth supported device.

Does Smart&Safe have a return policy/warranty?

• Yes. see Quicklinks on the bottom section of website..

Do we receive credit card payments?

Yes. You can pay with your credit card. All credit card transfers are redirected to PayPal secure interface, no need to open a PayPal account just fill out needed credentials.

How does the RadBlocker card work?

The RadBlocker card always needs to buffer between your body and mobile device. Just like a mirror it reflects radiation from your mobile phone away from you.

Can I place the RadBlocker card on the back of my mobile phone cover?

NO! if you place the RadBlocker card on the back of your phone it will reflect radiation back towards your head. ALWAYS needs to buffer between you and your mobile phone.