3 Inch Mobile Label Printer B300 Product 
Features 
• Easy to carry: Compact and portable, support Receipt and label dual printing capabitrties 
• Faster printing speed: Up to Max. 120mm/s 
• High definition: 203DPI resolution support watermark printing, two color thermal printing is optional 
• Support multi-connection mode: Bluetooth 4.2 Low Energy and passive NFC tags for quick pair, and WiFi optional 
• Suitable for mobile scenarios: Retails, transportation, manufacturing, traffic enforcement and so on Specification
Specification
| Print method | 
Direct Thermal | 
| Dot density | 
576dot/trne | 
| Print width | 
72 mm | 
| Resolution | 
8dots/mm (203DPI) | 
| Print speed | 
120mm/second | 
| Interface | 
Standard: USB 2.0, Bluetooth 4.2 Optional: Bluetooth 5.0, WIFI 2.4G/5G | 
| Paper width | 
30~80 mm | 
| Paper diameter | 
50 mm | 
| Paper thickness | 
0.053~0.16 mm | 
| Print commands | 
Compatible to TSPL, CPCL, ESC/POS, ZPL, JPL | 
| Fonts | 
/ | 
| Character Size | 
Simptrfied Chinese GB18030, Traditional Chinese BIG5, Korean KSC5601, Japanese (optional) | 
| Barcode mode | 
UPC-A, UPC-E, EAN-8, EAN-13, Code 128, Code 39, Codabar, Code 93, ITF, Interleaved 2 of 5 QR Code, PDF417, Data Matrix | 
| Code page | 
/ | 
| Dimension | 
105mm(W) * 62mm(H) * 118mm(D) | 
| Weight(including battery) | 
0.45 kg | 
| Power adaptor | 
Input: AC 100-240V, 50-60Hz. Output: DC 5V, 2000mA | 
| Lithium battery | 
2500mAh/7.4V rechargeable trthium battery | 
| Charge period | 
/ | 
| Work environment | 
0~52°C, 10~85% noncondensing | 
| Storage environment | 
-20~60°C, 5~90% noncondensing | 
| Drop resistance | 
1.5M | 
| Mechanism | 
50KM |