Printing method: hotline printingBluetooth version: 4.0Interface: Power Jack. Mini USB Printing Speed: 50 8 9.9mm/s Dots per Line: 384 Dots per Line Paper Thickness: 0.05 0.10mm Paper Width: 57 +/ 0.5mm Printing Width: 48+/ 0.5mm Roll Diameter: 25mmOperating temperature: 10 50 degrees CelsiusInternal characters: ASCII CH (8 x 1 6.8 x 1 7.9 x 2 4.12 x 24); GB18030 (16 x 1 6.24 x 24) Print command: ESC/POS compatible with order setPaper Feeding: Easy Loading PaperBlack Label Test: Supported Battery: 1500mAh Liion battery (included)Charging time: 24 hoursStandby time: 100 hours usage time: up to 3 daysPower adapter: DC 12V/ 1A About shlpping: All items will be shlpped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.