Widely used in telephone times, calling devices, time pieces electronic toys, satety equipments, RFID. Specifications SFN-17-A Rated Voltage(V) 30 Current Consumption(mA maximum) 1.5 at 12Vp-p/10cm Sound(dB) 80 at 12Vp-p/10cm Resonant Freq(Hz) 4500± 500 Operating Temperature(30%pf) 9500 Operating Temp(º C) -20~+50 Storage Temp(º C) -30~+80 Weight(g) 14