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Magnetoelectric resonance behaviour of xCoFe 2 O 4 -(12x)PbTiO 3 (x50?3,0?4,0?5,0?6) composites synthesised by a sol-gel process was investigated. A smaller electric field of 3 V cm 21 results in an inverse magnetostriction due to a mechanical deformation of piezoelectric phase. The converse magnetoelectric effect (CME) with driving frequency in a range of 5-16 kHz were measured at room temperature. The composite of 0?4CoFe 2 O 4 -0?6PbTiO 3 exhibits a maximum CME coefficient at electromechanical resonance frequency of 13 kHz. It was found that the low coercivity is advantageous for enhancing CME coefficient. Such a magnetoelectric behaviour controlled by a smaller electric field provides great opportunities for electric field tunable microwave devices.