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Dia.: 50mm
Operation: To be normal music source 0.5watt
Input: To be normal oscillartor 5.0 volt
Impedance: 50Ω±15% measure at 1KHZ
Resonant Freq.: 550hz±20% measure at 1 volt
Freq. response: 400-6000 hz
Sentivity: 87±3dB
Destortion: ≤5%