cell phone jammer is also used in the prison

 cell phone jammer will also disable any GPS tracking devices. Increasingly mobile society makes extensive use of cell phone electromagnetic radiation hazards to get attention. This paper reviews the basic principles of cell phone electromagnetic radiation and human health hazards for the role, citing a cell phone electromagnetic radiation, commonly used in the current international standard of protection, and scientific research, publicity regulation, cell phone users, and the angle of the radiation protection should be taken for the various measures and proposals. Over the last decade, the mobile phone as a convenient communication facilities in people's daily lives become increasingly popular. At the same time, mobile phone emission of electromagnetic radiation as a source for all aspects of human health but also the possible negative impact on the development with the mobile phone industry constantly under the spotlight.  cell phone jammer  can work continuously without any delay.
Domestic and foreign mobile phone manufacturers will be qualified with reference to the corresponding strict health standards for production, but there is radiation health standards on the market or counterfeit goods nonconforming situation can not be effectively controlled, combined with its long-term qualified mobile phones electromagnetic radiation effect is also still can not accurately predict which for hundreds of millions of users, mobile phone electromagnetic radiation hazards and risks merit close attention. Electromagnetic radiation is a form of electromagnetic wave energy to the process of launching out as a flow of energy pollution, it can not easily be perceived. Phone, also known as mobile phones, has been able to maintain communications at any time to contact, in a nutshell is that because it is a radio signal transmitter and receiver, through the electromagnetic signal station to keep in touch with the phone, when the phone is in use, it Call information will be converted into high-frequency electrical signals, and then by phone antenna in the form of electromagnetic waves to send the signal station, the same token it can receive the corresponding electromagnetic signal, and then converted through the realization of a call. Power cell phone jammer blocker SHN015