5pcs 3v-6v Dc 20ma-55ma Coin Vibration Motor 11*6.3mm Strong Magnetic Strong Vibrating Motor Size: 8*5.4MM Voltage: 3.7-5V OR Sine wave Power or Square wave PWM; Internal resistance 26ohm Linear vibration range 8mm Driving method: using sine wave alternating current or DC switch mode, can not work long hours. Package: 5pcs;