Create amazing Black/Red labels using DK-2251 or cost-effective, paper labels for packages, envelopes, file folders, name badges, postage and more. Wireless interface offers easy connectivity -- print from virtually anywhere or share on a network. Ultra-fast, printing up to 110 standard address labels per minute with black text at 300 dpi. Create and print labels from your mobile device when connected to a wireless network. Add an optional Li-ion battery for a complete mobile solution. Easy-to-integrate with free software development kits (Windows®, iOS®, and Android™). Convenient, Brother® DK drop-in labeling supplies. No ink or toner needed. Windows® and Mac® compatible.