This paper presents a method of energy conversion for an electromagnetic oscillation to electrical micro-power using magnetic-elastomer, and this method can efficiently scavenge power generator from low-frequency external vibration. In the present study, we focused on comparing experimental data to theoretical analysis in newly made experimental set up with various magnetic-elastomers. The theoretical analysis is based upon the law of Faraday's electromagnetic induction, in which the induced electromotive force can be estimated from the vibration of the magnetic-elastomer under the magnetic field. From the result of experiment, it was found that the measured peak output power was 5.64 μW at 1.6 Hz. The theoretical analysis revealed that data obtained in the experiment are well explained by means of alternating internal magnetization. Also in the present study experimental results are correlated with non-dimensionalized parameters, which involve all essential material parameters and governing dynamic properties.