Model:

QW2120 wired one-dimensional/USB port

QD2131 wired one-dimensional/USB port

QD2430 black USB port/[Meiyijia convenience store general]]

QD2430 White USB Port/[General Purpose of Meiyijia Convenience Store]]

QM2131 wireless one-dimensional (including base)

QM2430 wireless two-dimensional (including base)

GM4500-BK 2D/wireless/wifi version

GM4500-BK-HD 2D/Wireless/High Density Edition

GBT4500 2D/wireless/Bluetooth

QW2120/2420/2470 universal bracket

QD2131/2430 original bracket

QD2131/QD2430 intelligent induction base

QW2120/QD2430 original data cable USB port 2 m

GD4430/4590 domestic serial line 2 meters (without power supply)

QM2130/2131/2430 original battery