Features: Decent mini body, practical and portable. Replace the paper from the front panel, convenient for operation. Low noise thermal printing, works quietly and do not bother the others. Up to 80mm/s printing speed, greatly improves your working efficiency. No ribbon/ catridge needed, reduce consumption and environment friendly. Supports ESC/ POS print command. Specifications: Color: White Interface: RS-232+USB/ TTL+USB (Optional) Printing Method: Thermal Resolution: 8 dots/ mm, 384 dots/ line Effective Print Width: 48mm Character Set: ASCII, GB2312-80 ( Chinese ) Print Fonts: ANK: 5 * 7, Chinese: 12 * 24, 24 * 24 Paper Type: Thermal paper Paper Width: 57.5 +/- 0.5mm Roll Diameter: 30mm (max.) Reliability: Mean Cycle Between Failure (MCBF) 500 million lines Embed Depth: 43mm Power Supply (Adapter): DC 5V-9V Operating Temperature: 5-50 Humidity: 10%-80% Storage Temperature: -20-60 Storage Humidity: 10%-90% Compatible System: Windows, IOS, Linux, Android Item Size: 8 * 5.7 * 4.3cm/ 3.1 * 2.2 * 1.7in Item Weight: 106g/ 3.7oz Package List: 1 * Printer 1 * USB Cable 1 * Wiring Harness