58mm Portable Bluetooth Receipt Printer With RS232 / Mini USB Interface

58mm Portable Bluetooth Receipt Printer with RS232 and Mini USB Interface Feature 1. Low noise, fast printing speed, clear print 2. Battery capacity: 1400mAh Standby time: over 100 hours Working time: over 3 hours a time 3. With standby sleep, auto awake, black label detection, paper out detection, low voltage alarm functions 4. Providing Android test APP and source code, windows driver, test demo and source code. 5. Multi-language print (Chinese, English, French, Italian,