Brother RJ4230BL mobile direct thermal printer, supplied under Getac ordering code 590GBL000545, is configured for 4 in receipt and label output in warehousing environments. It includes a battery, USB and Bluetooth technology/MFi connectivity, and NFC pairing. The package also includes a roll holder stop, strain relief clip, belt clip, documentation set, and a 2 Year Premier Limited Warranty. Print monochrome receipts and labels at up to 203 dpi, with a maximum print area width of 4.09 in (104 mm). Standard media width begins at 1.77 in (45 mm). The printer supports USB, serial, Bluetooth, and NFC interfaces. Media detection covers transmissive gap or hole, reflective black bar or hole, and out-of-paper conditions. Dimensions are 153 mm wide, 159 mm deep, and 68 mm high. For warehouse mobile printing, this configuration combines direct thermal output with wired USB, serial, Bluetooth, and NFC connection options. ZPL and CPCL are included for receipt and label workflows requiring a 4 in mobile printer. The ordering code 590GBL000545 denotes this Brother RJ4230BL warehousing configuration with its included battery and supplied clips and roll holder stop.