1. Set the interface to USB HID KBW, scan the following barcode one by one
2. Set the interface the USB CDC COM:
It also can be setting though Easyset as following page:
Choose the interface you want to set, then click save to Device.
3. Enable and Disable Reread delay.
Default setting is disabled, you can enable it when you need it.
It also can be set though Easyset: