| Specification | |
|---|---|
| Speaker | mylar speaker |
| Model | 40M300R2 |
| Diameter | 40MM |
| Rated power | 0.02 watt Max 0.03 watt |
| Nominal Impedance | 300 Ohm±15% |
| Lowest Resonance Frequency | 90±20% HZ |
| Output Sound Pressure Level(S.P.L) | 107 ± 3db. |
| Effective Frequency Band | F0-20KHZ ,Average SPL±10db |
| Certificate |  |
