| Model Number | D57 |
| Bluetooth Version | V5.3 |
| Capacity | 3000mAh |
| Time For Charging | ≈3h |
| Average Battery Life | 1-3.5H |
| Speakers | 2inches |
| Power | 2*8W |
| Impedance | 4Ω |
| Frequency Range | 90HZ~20KHZ |
| Color | black |
| Product Weight | 1.5kg |
| Product Size | 796*88*72mm |
| Packed Weight | 848*106*124mm |
| Packed Size | 1.835kg |
| PCS/CTN | 8PCS/CTN |
| Carton Size | 860*260*450mm |
| G.W. | 15.7kg |
| Certifications | FCC CE ROHS |
| Product Status | Stopped |










