2019 High Performance loudspeaker 3 inch 4ohm 3 watt waterproof mylar speaker
| Specification | |
|---|---|
| Speaker | Waterproof speaker |
| Model | 7821CM04 |
| Diameter | (Dia )78MM*21MM (H) |
| Rated power | 3.0 watt Max 5 watt |
| Nominal Impedance | 4 Ohm±15% |
| Lowest Resonance Frequency | 330±20% HZ |
| Output Sound Pressure Level(S.P.L) | 101± 3db. |
| Effective Frequency Band | F0-10KHZ ,Average SPL±10db |
| Certificate |  |
