There are two ways by which the reading of wristbands can be set up on Yonoton POS based on the connection type
Internal NFC reader: This reader is located inside the android device running the POS.
External NFC reader: This reader is a physical device that is attached to the android device running the POS.
Note: Once the device does not have any internal NFC reader, the Internal connection type will not be available for selection/activation.