All of us use the magnets in a daily life, but do we really pay an attention on that? When you switch a cell phone to vibrate mode, the fast movement and corresponding sound that you hear in a consequence is caused by a miniature Nd magnet inside the phone. If you are a teenager or huge fan of high-tech or addicted from music, I am almost sure that you have the most modern headphones ever, but did you know that this great sound quality as well as a full spectrum of bass is improved by Nd magnets? Yes, this is one of their applications as well. Regarding very popular since a while term ECO, users of hybrid and electric vehicles should know that their cars often use high-strength Nd magnets to power the vehiclesâ€™ DC motor. Moreover, wind turbine generators depend on NdFeB magnets in order to produce electricity. Besides these we can find Nd magnets in office supplies, jewelry, toys, machines, tool, etc.. They are simply around us! But do we really know how to use them properly? Do we really know what are they capable of? Do we take into account that they may be dangerous?