Widely used in telephone times, calling devices, time pieces electronic toys, satety equipments, RFID. Specifications TMB-12-A01 TMB-12-A03 TMB-12-A05 TMB-12-A12 Rated Voltage(V) 1.5 3 5 12 Voltage Range(V) 1.5~2.5 2.5~4 4~7 8~15 Rated Current(mA) ≤ 20 ≤ 35 ≤ 30 ≤ 25 Sound Output(dB) ≥ 80 ≥ 82 ≥ 85 ≥ 85 Resonant Freq(Hz) 2300± 500 2300± 500 2300± 500 2300± 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 2