A9 wide-format homework wrong questions to organize the mini phone

Product name: Mini printer
Appearance color: mint green A9Pro ivory white A9
Product model: A9 A9Pro
Printing method: inkless printing
Print connection: Bluetooth/computer USB interface
Product size: 118*71*44mm
Development method: monochrome
Resolution: A9 (standard definition 203dpi), A9Pro (high definition 304dpi grayscale)
Charging port: Micro USB 5V=2A
Consumable specifications: width 58mm/7 7mm, diameter 30mm (within)