DMT-1206-SMT Model: DMT-1206-SMT Rated Voltage: 6 Vp-p (DC) Operating Voltage: 4 VDC - 8 VDC Current Consumption:* 40 mA max. Sound Pressure:* 85 dB min. Coil Resistance:* 47 +/- 7 OHM Coil Impedance: 80 OHM Resonant Frequency: 2,200 Hz Operating Temp: -30 ~+80degree C Weight: 1.5 gram * Applying rated voltage (square wave, 1/2 duty, resonant frequency) * Distance at 10 cm (applying rated voltage: 2,200 Hz, 1/2 duty, square wave) * Applying resonant frequency, sine wave, measuring current 60mA