1. Inkless Printing: With advanced thermal technology, the small printer does not need to use any carbon, ribbon, ink, just carry the printer paper, enjoy convenient printing; Measures 10.4 x 2.3 x 1.2in, printer can simply slide into a backpack or briefcase.2. Multiple Sizes: Portable printer supports both roll paper and folded thermal paper, 210mm or 218mm wide thermal paper, US Letter and Legal, A4, A5, 2in, 3in, 4in)216/210/107/77/ 57mm width), allowing you print documents, contracts, invoices, boarding passes, study notes, recipes, letters, receipts anytime, anywhere.Specification:Item Type: Portable Wireless PrinterMaterial: ABSColor: WhitePrinter Size: Approx. 265 x 58.8 x 30mm / 10.4 x 2.3 x 1.2in Battery: Built in Lithium Polymer Battery, Capacity: 1000mAhConnection: Bluetooth 4.0 abovePrint Dots PAer Inch: 200DPIAuto Power Off: 30minCharging Time: Approx. 1.5HContinuous Printing Time: 90 sheets of A4 thermal paperPrint Type: Thermal PrintingPrint Speed: 10mm/sApplicable Paper Width: 210mm/218mm Thermal Paper (without thermal paper)Charging Interface: Type CHow to Use:Take out the product reference manual for usePackageList:1 x Printer1 x USB Cable1 x User Manual