... price 3.Short lead time and all-round disc speaker magnet Magnet(NdFeB magnet) is made from Neodymium,Iron ... the Neodymium magnets(Ndfeb Magnet)1.) Electro-Acoustic Field: Receiver, Speaker, Microphone, Audio alarm stage, Loudspeaker2.) Motor Field: Voice ... coil motor (VCM), CD/DVD-ROM, Generator, Vibration Motor, Brushless Motor, Vehicle Motor3.) Electronics: ...