1. 58mm bill printing, convenient save cost 2. High printing speed, 80mm/s 3. Simply-easy design, easy to carry and operation 4. Paper easy-loading structure, convenient in using 5. The printing head can print reach to 50KM, long printing life 6. 2.0 Bluetooth transfer, high efficiency, long work distant 7. Large battery capacity, 1600mAh 8. Support Micro USB 9. Support USB adapter charger