Widely used in telephone times, calling devices, time pieces electronic toys, satety equipments, RFID. Specifications TMB-12-C01 TMB-12-C03 TMB-12-C05 TMB-12-C12 Rated Voltage(V) 1.5 3 5 12 Voltage Range(V) 1.4~2 2~5 3~7 9~15 Rated Current(mA) ≤ 25 ≤ 35 ≤ 30 ≤ 25 Sound Output(dB) ≥ 75 ≥ 82 ≥ 83 ≥ 83 Resonant Freq(Hz) 2800± 500 2800± 500 2800± 500 2800± 500 Operating Temp(º C) -20~+60 -20~+60 -20~+60 -20~+60 Storage Temp(º C) -20~+80 -20~+80 -20~+80 -20~+80 Weight(g) 2 2 2