A. **Features** 1. It is a 58mm embedded thermal printer with a printing speed of approximately 60mm/s. It prints relatively clearly and efficiently and can be well - adapted to your devices. 2. It uses direct thermal printing technology, which generally eliminates the need for ink cartridges or toner. It is considered environmentally friendly and cost - saving to some extent. 3. It has multiple connection modes, including USB, RS232, and TTL serial ports, and supports ESC/POS commands. An Android SDK is provided, and it is compatible with Windows, Linux, and Android systems. 4. It adopts an industrial print head, which has relatively stable performance, good printing results, is wear - resistant, and has a service life of up to about 50km. 5. It is widely used in places such as supermarkets, shopping malls, restaurants, banks, and self - service terminals, and can be easily embedded in various instruments and meters. B. **Specifications** 1. Color: Black 2. Material: ABS 3. Printing mode: Thermal line printing 4. Paper width: 58mm 5. Printing width: 48mm 6. Paper roll diameter: Maximum 40mm 7. Printing speed: Approximately 60mm/s 8. Resolution: 203dpi 9. Print head life: About 50KM 10. Printing command: ESC/POS 11. Operating system: Linux, Windows XP/7/8/10, Android 12. Working voltage: DC 5 - 9V 13. Interface: USB/RS232/TTL 14. Product size: 11.1 * 6.5 * 6cm / 4.4 * 2.6 * 2.4 inches 15. Product weight: 177g / 6.2 ounces 16. Packaging size: 18.3 * 11 * 8.3cm / 7.2 * 4.3 * 3.3 inches 17. Packaging weight: 346g / 12.2 ounces C. **Packing List** 1. One thermal printer 2. One roll of thermal paper 3. One USB data cable 4. One RS232 data cable 5. One power cord