1、Supports BT 4.0 function, supports Android, iOS and Windows, convenient for data in your wireless printing device 2、High efficiency, the printing speed can reach 50 to 80mm/s, clear printing, automatic sleep, automatic wake-up, energy saving 3、Built-in 1500mAh large-capacity rechargeable lithium battery, long working time, support smartphone control, easy to operate, improve work efficiency 4、The direct thermal printer prints with thermal paper, the volume is smaller, quieter, faster, more energy-efficient 5、Printing taxi tickets, printing management fee receipts, receipt printing, printing restaurant order information and other small light, easy to carry Item Type: Thermal Printer Model: D58A-2 BT Version: 4.0 Interface: Micro USB Printing Method: Thermal Printing Printing Speed: 50 to 80mm/s Resolution: 8 dots/mm, 384 dots/line Printing Width: Approx. 48mm/1.9in Paper Width: 57.5 ± 0.5 mn Volume Outer Diameter: Approx. 40mm/1.6in Cascade Inner Diameter: Approx. 13mm/0.5in Paper Thickness: 60 to 80um Life Cycle: 50km (Printing density is under 12.5%) Input Voltage Current: AC 100 to 240V ~ 0.2A 50 / 60Hz Output Voltage Current: DC 5V / 1000mA Battery Type: Rechargeable lithium battery (built-in) Battery Capacity: 1500mAh 1 x Thermal Printer 1 x Data Cable 1 x Plug 1 x User Manual