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| Diameter： | 57mm(2.25 inch) |
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| Height： | 18.2mm(0.72 inch) | |
| Nominal Impedance： | 45Ω±15% | |
| Resonance Frequency： | 400Hz ±20% | |
| Frequency Response： | 400-4500Hz 10dB | |
| Sound Pressure Level： | 81dB(1W/1M) | |
| Nominal Power： | 0.3W | |
| Net weight: | 48.5g | |
| Maximum Power: | 0.5W |
