| Application/Usage | Mobile |
| Bluetooth, Near Field Communication (NFC), Serial Port, USB | Yes |
| Brand Name | Brother |
| Depth | 6.3 |
| Form Factor | Portable |
| Height | 2.7 |
| Limited Warranty | 2 Year |
| Manufacturer | Brother Industries, Ltd |
| Manufacturer Part Number, Product Model | RJ4230BL |
| Manufacturer Website Address | http://www.brother-usa.com |
| Maximum Mono Print Speed | 5 in/s |
| Maximum Print Resolution | 203 dpi |
| Media Type | Label, Receipt, Tag |
| Platform Supported | PC, Android, iOS |
| Power Source | Battery |
| Print Color Capability | Monochrome |
| Product Line | RuggedJet |
| Product Name | RuggedJet RJ4320BL 4 |
| Product Type | Direct Thermal Printer |
| Recommended Use | Label/Receipt Print |
| Standard Memory | 256 MB |
| Weight (Approximate) | 1.60 lb |
| Width | 6 |