| General Features | |
|---|---|
| Color | Black |
| Specifications | |
| Output power | 2 x 3W RMS |
| Speaker | 4 Ω, 3W, 40mm driver |
| Battery capacity | 400mA |
| Input power | DC 5V, 500mA |
| Max Consumption Current | 500mA |
| Frequency response | 90 - 18KHz |
| Sensitivity | 500mv ±50mv |
| Signal to noise ratio | ≥ 70db |
| Distortion degree | ≤ 0.3% |
| Charging time | about 2 hours |