No.ItemUnitSpecificationCondition
1Oscillation FrequencyHz2731Vo-p=1/2duty , square wave
2Operating VoltageVo-p2 ~ 4
3Rated    VoltageVo-p3
4Current    ConsumptionmAMAX. 60at    Rated Voltage
5Sound Pressure LeveldBMIN. 83at 10cm at Rated Voltage
6Coil Resistance (Ω)
25±4
7Weight (MAX)gram0.8
8Housing Material
PPO ( Black )