1. Mini size, Light weight (total 260g including paper roll and battery), Durable performance 2. 1600mAH, 7.4V rechargeable li-ion battery, quick charge 3. Continuously work for 6.5 hours or 230km 4. 80mm/s high printing speed 5. Standard interface: RS-232, USB; Bluetooth or IR interface optional 6. Support various languages, easy to use Printing Method: Direct thermal printing Printing Width: 48mm Resolution: 203dpi Printing Speed: Max. 80mm/s Paper Width: 57.5±0.5mm Paper Loading: Easy paper loading Interface: Bluetooth+USB Emulation: ESC/POS Power: 1600mAh rechargeable li-ion battery Certificate: FCCID, CE, 3C Dimension (LxWxH): 103*75*46mm Weight: 240gï¼?Including battery and paper rollï¼? Color: White/Black/Grey