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| Diameter： | 28mm(1.1 inch) |
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| Height： | 5mm(0.2 inch) | |
| Nominal Impedance： | 4Ω±15% | |
| Resonance Frequency： | 450Hz ±20% | |
| Frequency Response： | 450-4500Hz 10dB | |
| Sound Pressure Level： | 90dB(0.1W/0.1M) | |
| Nominal Power： | 0.2W | |
| Maximum Power: | 0.4W | |
| Net Weight: | 7.5g |
