Sonic Battery Powered Travel Electric Toothbrush 1.Adopting advanced sound wave technology 2.Optional multi-file modes Sonic Battery Powered Travel Electric Toothbrush CE/ROHS CertificationsSonic Battery powered multi-functional sonic toothbrush Describing functions1,Quiet design2,Long standby3,Inductive charging design4,Optional multi-file modes of vibration frequency5, Adopting international ...