Magnetic locks and mute lock that better use?

Mute lock is a mechanical locking device is controlled by relay, the magnetic lock is using the principle of electric raw magnetic, when an electric current passes through the silicon steel sheet, tightly absorb electromagnetic lock will produce a powerful suction adsorption iron plate to achieve the effect of locking the door when you leave. Magnetic lock more generally applicable district office, he is the function of electric lock, lock, power unit and mute lock is village gate, its performance is just the opposite and magnetic locks, it is electric drive, power locks so each has its good both locks. Magnetic locks and mute locks, magnetic locks the range may be useful.