Zebra M3I-0UB00010-00 IMZ320 Direct Thermal Mobile Printer, Monochrome, 203 DPI, With Bluetooth Direct thermal mobile printer with Bluetooth wireless communication prints monochrome receipts up to 2.9" wide at 4" per second and 203 dpi (8 dots/mm) Link-OS environment-enabled for integration, management, and maintenance from a PC, smartphone, or tablet Connectivity with Apple iOS, Android, and Windows Mobile systems 128 MB RAM memory and 128 MB flash memory supports downloadable programs, receipt formats, fonts, and graphics Compact design tolerates multiple drops from 4'/1.2 m to concrete and offers an IP42 dust- and water-resistance rating