Magnetic radiators are still bad for mobile phones. Because our GPS antenna is very sensitive, this magnetic radiator installed on the back of the mobile phone, the mobile phone's GPS signal has the effect of shielding and attenuation, resulting in the mobile phone search GPS signal is very poor, will interfere with the mobile phone compass, signal, resulting in the mobile phone navigation, pointing inaccurate or there is a fixed deviation. So in order to better use the mobile phone, or do not use some magnetic products.