Widely used in telephone times, calling devices, time pieces electronic toys, satety equipments, RFID. Specifications SFM-27-J Rated Voltage(V) 220 Voltage Range(V) 200-240 Sound Output(dB) ≥ 85 Resonant Freq(Hz) 2300± 500 Operating Temp(º C) -20~+45 Storage Temp(º C) -20~+60 Weight(g) 7
