Rohs compliant Magnetic transducer 16*14mm, 2048Hz, 85dB, PCB mounted TypeUnitEMT-1601CEMT-1206CEMT-1212C ... Voltage V1.5612 Operating Voltage V1~34~89~15* Rated Current (Max) mA184040* Min sound output at 10cm dB808585 Coil Resistance ... Rated Voltage (resonant frequency, 1/2 duty, square wave) Magnetic transducer (EMT-1606C)