Features:

Wireless design, supports long distance printing
Direct thermal, no ink, toner, or ribbons.
Supports all major label formats: price, date, size, weight, name, and so on.
Versatile, easy to use.
Mini and lightweight, convenient for you to carry.
1200mAh battery-capacity supports long time use.

Specifications:

Material: ABS
Battery-capacity: 1200mAh
Resolution: 203dpi
Connect phone: Bluetooth
Connect computer: USB (driver installation required)

B1 Model:

B21 Model: