The Alpha-4L is a comfortable, light-weight printer capable of working with any mobile label, document or receipt printing application where you need labels printed wherever you are. The 4-inch direct thermal portable label printer features a rugged design and reliable performance that will continue to operate long after other printers have failed. Part Details: Mobile Label Printer - TSC Alpha-4L - Direct Thermal - 203 dpi - 4.09'' Print Width - USB/Bluetooth (Supports Apple and Android) - 4 ips - US - LCD Screen - 32MB Flash Memory - 16MB DRAM. Replaces (Part# 99-052A013-50LF)