Introductory Circuit Analysis
| Country | USA |
| Brand | ALLSUN |
| Manufacturer | ALLSUN |
| Binding | Wireless Phone Accessory |
| Model | X9 |
| Warranty | 12 months warranty guaranty and lifetime customer service |
| Color | Black |
| UnitCount | 1 |
| UPCs | 308075339477 |
| EANs | 0308075339477 |
| ReleaseDate | 0000-00-00 |