Human Resource Information Systems: Basics, Applications, and Future Directions
| Country | USA |
| Brand | Sennheiser |
| Manufacturer | Sennheiser |
| Binding | Electronics |
| ItemPartNumber | MICMD421II |
| Model | 00615104009844 |
| Warranty | 2 years. |
| Color | black |
| ReleaseDate | 2011-03-31 |
| Size | Large |
| UnitCount | 1 |
| UPCs | 615104009844 |
| EANs | 4006087009840 |