Model no.Yr1430d Oscillation frequency (hz)2700 Operating voltage (vo-p)3.0 ~7.0 Rated voltage (vo-p)5 Current consumption(ma/max.)80 at rated voltage Sound pressure level (db/min.)85 at 10cm at rated voltage Coil resistance (¦¸)40 ¡à 3 Operating temperature (¡æ)-30 ~ +75 Storage temperature (¡æ)-40 ~ +85 Dimension (mm)l 14 ¡á w 13 ¡á h 3.0