Linerless media support sets the Honeywell RP4F0001D12 apart within the RP4f portable direct thermal family, allowing it to handle labels, receipts, tags, black mark and gap stock -- with or without a liner -- up to 4.37 inches wide, 6.30 mil thick, on rolls to 2.28 inches in diameter. It prints monochrome at 203 dpi and up to 5 in/s across a 4.09-inch print width, backed by 256 MB of standard memory and a 4900 mAh lithium-ion battery rated at 4.90 A discharge. IEEE 802.11a/b/g/n wireless LAN, Bluetooth, NFC, and optional USB cover connectivity, while ZPL II, DPL, IPL, CPCL, XML, FP and DP emulations support broad host compatibility across PC, Android and iOS platforms. An IP54 rating and an operating range of -4 degrees F (-20 degrees C) to 131 degrees F (55 degrees C) suit field deployment, and the 2.25 lb portable chassis fits direct store delivery, field service and logistics workflows. A one-year limited warranty applies.