Printing method: hotline printing<br> Bluetooth version: 4.0<br> Interface: Power Jack, Mini USB<br> Printing Speed: 50 - 89.9mm/s<br> Dots per Line: 384 Dots per Line<br> Paper Thickness: 0.05 - 0.10mm<br> Paper Width: 57 +/- 0.5mm<br> Printing Width: 48+/- 0.5mm<br> Roll Diameter: 25mm<br> Operating temperature: -10 - 50 degrees Celsius<br> Internal characters: ASCII CH (8 x 16, 8 x 17, 9 x 24, 12 x 24); GB18030 (16 x 16, 24 x 24)<br> Print command: ESC/POS compatible with order set Paper Feeding: Easy Loading Paper Black Label Test: Supported - Battery: 1500mAh Li-ion battery (included)<br> Charging time: 2-4 hours<br> Standby time: 100 hours<br> usage time: up to 3 days<br> Power adapter: DC 12V/ 1A<br>Note: <br>1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. <br>2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!<br>About Shipping: <br>1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly.<br>2.All items will be shipped 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.<br>3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 880 hours, wish you a happy shopping!