Rohs compliant Magnetic transducer 12*6.5mm, 2400Hz, 85dB, PCB mounted TypeUnitEMT-1203DEMT-1205DEMT-1212D Rated Voltage V3512 Operating Voltage V2~54~87~16* Rated Current (Max) mA606060* Min sound output at 10cm dB858585 Coil Resistance Ω 25±445±4140±4* Resonant Frequency Hz2400 Operating Temperature -20 ~ +70 Storage Temperature -30 ~+80 Housing material/ColorNORYL/BLACK Weight g2* Value ...