The 3 models can read different barcode at one time.

It's suitable for warehouse and production industries. 

Some product label on the box with 3 barcode, 4 barcode, etc, as follows:

When staff needs to read these barcode, they don't need to read 3 times, they just need to read one time, the 3 barcode data will transmit to the computer/terminal.

XT6400K and XT6201K can read 4 pieces of barcode at one scan.

XT6400K is wireless 2D.

XT6201K is USB/RS232 wired 2D.

XT8002 can read 20 pieces of barcode (Max) at one scan. Actual output depends on the barcode size, and barcode types, etc.

XT8002 is Android Handheld Mobile Terminal, with Android 9.0 system, 4G+64G, with NFC function.