| Colour | No |
| Maximum resolution | 203 x 203 DPI |
| Print speed | 127 mm/sec |
| Maximum printing width | 10.4 cm |
| Minimum print length | 3 mm |
| Maximum label width | 11.3 cm |
| Maximum roll diameter | 5.8 cm |
| Connectivity technology | Wired & Wireless |
| Ethernet LAN | No |
| Wi-Fi | Yes |
| USB port | Yes |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n) |
| Bluetooth | Yes |
| Bluetooth profiles | HCRP, OPP, SPP |
| USB 2.0 ports quantity | 1 |
| Page description languages | CPCL-native, ESC/P-P, Raster_P, ZPL II |
| Internal memory | 256 MB |
| Flash memory | 64 MB |
| Product colour | Black |
| AC input voltage | 110 - 220 V |
| AC input frequency | 50 - 60 Hz |
| AC adapter output voltage | 15 V |
| Battery technology | Lithium-Ion (Li-Ion) |
| Battery voltage | 7.2 V |
| Windows operating systems supported | Windows 10, Windows 7, Windows 8 |
| Mobile operating systems supported | Android, iOS |
| Width | 153 mm |
| Depth | 159 mm |
| Height | 68 mm |
| Weight | 850 g |
| Quantity per pack | 1 pc(s) |
| Package weight | 1.28 kg |
| Batteries included | Yes |
| Quick start guide | Yes |
| Software development kit (SDK) | Yes |
| Harmonized System (HS) code | 84433210 |
| Emulations | ZPL II |
| Description |
| Brother RJ-4250WB. Maximum resolution: 203 x 203 DPI, Print speed: 127 mm/sec. Connectivity technology: Wired & Wireless. Battery technology: Lithium-Ion (Li-Ion). Product colour: Black |