We are Offering Piezo Transducer - Mspt22f.type (unit) Mspt22f10w10 min. Sound Output At 10cm (db) 75 rated Voltage (vp-p) 10 operating Voltage (vp-p) 130 resonant Frequency (hz) 1000+/-400 max. Current Consumption (ma) 3 capacitance At 1, 000hz (pf) 12000+/-30% operating Temperature (c) -20+60 storage Temperature (c) -30+70 weight (g) 1.5