Zebra ZQ521 Mobile Thermal Label Printer ? Bluetooth USB ? Fully Tested ? Printhead OK ? No Battery Key Features: ?? Boots up and prints a clean self-test label (see photos) ?? Verified printhead condition ? Printhead test: OK, no missing lines or dead dots ?? Bluetooth 4.1 and USB connectivity both work and are recognized ?? Firmware updated ? running OS 7.0.1 with stable config ?? Genuine Zebra unit ? matching serial, FCC ID, and config output ?? Ideal for buyers needing a tested replacement or backup printer Condition: Used tested condition with normal visible wear from field use ? scratches, scuffs, and marks on the housing. Latches and battery contacts are intact. Battery is NOT included ? used only for testing, buyer must supply their own compatible battery. No charger, cables, or other accessories are included. See all photos for exact cosmetic condition and test print details. What?s Included: Zebra ZQ521 mobile thermal label printer body only Printed self-test configuration sheet for your reference What?s Not Included: Battery Charger, cables, or any other accessories Unit Details: Model: ZQ521 Serial Number: BARBJ204800449 Bluetooth MAC: 60:77:71:C0:86:65 Firmware: OS 7.0.1 Official product support: https://www.zebra.com/zq521-info ? Shipping: Ships fast and securely packed via USPS Priority. Please see all photos for condition and test output. Feel free to message with any questions ? buy with confidence!