Device Type: Professional Desktop Thermal Label Printer (Network & Wireless) Part Number/SKU: QL-820NWB (also QL-820NWBc) Brand: Brother Print Technology: Direct Thermal (No Ink or Toner Required) Print Resolution: Standard: 300 × 300 dpi; High Resolution Mode: 300 × 600 dpi Print Speed: Up to 176 mm/sec (AC Adapter); Up to 110 Labels/Minute Two-Colour Print Speed: Up to 24 mm/sec (AC Adapter); Up to 15 mm/sec (Battery) Print Colours: Black & Red (Requires DK-22251 Continuous Roll) Maximum Print Width: 58 mm Media Type: Brother DK Roll (Die-Cut & Continuous Length Labels) Maximum Roll Width: Up to 62 mm Available Tape Widths: 12 mm to 62 mm Maximum Label Length: Up to 1 Metre (Continuous Rolls) Connectivity, Standard: USB 2.0 Full Speed (Peripheral & Host); Wired LAN (10/100BASE-TX); Wi-Fi (802.11b/g/n Infrastructure & Wireless Direct); Bluetooth Classic (SPP, OPP, BIP, HCRP) Mobile Printing: Apple AirPrint, Brother iPrint&Label App, MFi Certified Display: 320 × 120 dot Graphic LCD with Backlight Memory: 6 MB File Storage; 255 Templates Cutter: Durable Automatic Full Cutter (Guillotine Type) Barcode Support: 21 Barcode Protocols (via P-touch Editor) Power Source: AC Adapter (PA-AD-001A): Input 100–240 V, 50/60 Hz; Output DC 25 V, 3.6 A Optional Battery: Li-ion Battery Unit (PA-BU-001), 14.4 V Dimensions (W × D × H): 125.3 × 234 × 145 mm Weight: 1.16 kg (Without DK Rolls) Operating Temperature: 10°C to 35°C Operating Humidity: 20% to 80% (Non-Condensing) In the Box: Label Printer, AC Power Cord & Adaptor, USB Cable, 100 × Die-Cut Standard Address Labels (DK-11201), 1 × DK-22251 Continuous Roll (62 mm × 5 m, Black/Red on White), User Guide Warranty: 3 Years Carry-In Warranty (Region Dependent; 1 Year in Some Regions) Key Specs: Brother QL-820NWB, Professional Desktop Thermal Label Printer, 300 × 600 dpi High Resolution, 176 mm/sec Print Speed, Up to 62 mm DK Roll Width, 58 mm Print Width, Black & Red Printing (with DK-22251), USB 2.0, Wired Ethernet, Wi-Fi 802.11b/g/n, Bluetooth Classic, Apple AirPrint & MFi Certified, 320×120 Backlit LCD, 6 MB Memory / 255 Templates, Automatic Full Cutter, 21 Barcode Protocols, Optional Li-ion Battery, 1.16 kg, 3-Year Warranty Usage: Office & Business Labelling, Address & Shipping Labels, File Folder Labels, Barcode & QR Code Printing, Name Badges, Product & Pricing Labels, Visitor Badges, Inventory & Asset Tagging, Two-Colour Highlighting (Use-By Dates, Allergens, Critical Information), On-Demand Label Printing from PC/Mac/iOS/Android, Stand-Alone Printing from Integrated LCD, Retail & Healthcare Mobile Printing (with Optional Battery Base)