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Description:Features: 1) Rated voltage: DC 12V 2) Operating voltage: DC 3 - 16V 3) Rated current: ≤7mAh 4) Sound output at 10cm: ≥85dB 5) Resonant frequency: 4.1 ± 0.5kHz 6) Operating temperature: -20 - +70oC 7) Storage temperature: -30 - +80oC 8) Weight: 0.8g