Brother RJ-2140. Print technology: Direct thermal, Type: Mobile printer, Maximum resolution: 203 x 203 DPI. Maximum roll diameter: 6 cm, Maximum printing width: 5.4 cm, Maximum media length: 100 cm. Connectivity technology: Wired & Wireless, USB connector: Mini-USB Type-B, Bluetooth profiles: BIP, HCRP, OPP, SPP. Wi-Fi standards: 802.11b, 802.11g, Wi-Fi 4 (802.11n). Built-in barcodes: AZTECCODE, CODABAR (NW-7), Code 128 (A/B/C), Code 39, Code 93, Data Matrix, EAN13, EAN8, GS1-128,..., Internal memory: 32 MB, Page description languages: CPCL-native, ESC P, ZPL II