AegisGuard? Headset Radiation Shields for wired headsets consist of two individual components; a Wire Shield that fits all cell and cordless phone headset wires, and an Earpiece Shield that fits all EarBud, EarGel and In-The-Ear style headset earpieces (use AegisGuard? LS Radiation Shields for earpieces with a diameter larger than (3/16 in.). They do not contain Nickel or MDF and each component is easily installed without tools. AegisGuard? Headset Wire Shields provide far greater protection than ferrites and should not be confused them. AegisGuard? Headset Wire Shields prevent up to 98% of a cell phone's radiation from being transferred through a headset wire and when used with an Earpiece Shield, up to 99.9% of the radiation emitted from the earpiece is deflected away from the ear.
If you must use a phone while driving, the use of a hands free headset in an automobile is a great idea and required in many places by law. If you are not using your cellular or cordless phone protected with AegisGuard? Radiation Shields, it is also sensible to increase the distance between you and the phone by using a headset. But as Aegis first reported in 1998, if you think using a wired or wireless headset is safer than holding a phone against your ear, think again.
The ABC news show 20/20 aired their first broadcast about cell phone radiation and SAR safety standards in 1999. During the broadcast, a wired headset was attached to a cell phone and SAR tests revealed a reduction in radiation emissions from the phone's earpiece. Surprisingly, emissions from the headset earpiece and wire were not tested. In December, 2000, the British government reversed their endorsement advising consumers to use headsets as safety devices. This occurred after they discovered cell phone wired headsets can channel more than three times the amount of radiation into the head when compared to holding a phone against the ear. Wireless headsets represent an even greater risk because the wire is replaced with a transmitter and receiver operating with low power at frequency levels between 900 MHz. to 2.4 GHz. Microwave ovens operate at 2.4 GHz., and the maximum frequencies for wireless products compliant with Bluetooth and 3G specifications are 2.497 GHz. and 2.17 GHz., respectively. The headset wire connecting a cell phone and earpiece serves as an antenna that absorbs radiation in the air that surrounds every person. When a headset is used with a cell phone, the radiation generated by the phone and the airborne radiation that surrounds everybody is transferred through the wire or plastic tube connecting the phone and earpiece and penetrates the head directly through the ear canal. Cellular phone headset earpiece emissions into the ear canal can be three times higher than the emissions when placing a phone directly against the ear.