The voltage used to drive the thermal printer head is equal to the logic voltage, or is driven by a 5 V single power line, the range of operating voltage is 4.2V-8.5V, so four to six NI-Cd battries or Ni-MH batteries can also be used. Two li-ion batteries can be used.

　　2. Compact and lightweight design 

The mechanism is compact and light, dimensions: 67.7mm (width) * 24.9mm (depth) * 26mm (height)

3. Printing with high resolution 

A high-density printer head of 8 dots/mm make the good printing quality

4. High speed printing

According to driving power and sensitivity of thermal paper, set different printing speed required. Printing speed is 70 mm/ s (max.)

5. Easy paper loading

Detachable rubber roller structure makes the paper loading easier

6. Low noise 

Thermal line dot printing is used to guarantee low noise printing.