1. The interface under the USB line: (The USB line is both the charging line and the data line)

(1) USB HID KB: (default data interface). Chinese name: USB port, USB keyboard port; (it is a USB keyboard device, no driver is required); the scanned data is sent to word, xls, text documents, web pages, etc., where the cursor is located.

(2) USB CDC; (need to scan the code to set this interface). Chinese name/alias: USB virtual serial port, virtual serial port, USB VCOM, fake serial port; (it is a serial port device, no driver is required for win10, and drivers are required for win7 and below. This driver company provides); transfer to serial port tools, hyperterminal, etc. In the serial port receiving tool (the default display is hexadecimal; some tools display hexadecimal and decimal (the company can provide third-party serial port receiving tools under windows).

2. 2.4G receiver (USB port):

(3) USB HID KB: (default data interface). Chinese name: USB port, USB keyboard port; (it is a USB keyboard device, no driver is required); it is transferred to word, xls, text documents, web pages, etc., where the cursor is located.

(4) USB CDC: (need to scan code to set this interface). Chinese name/alias: USB virtual serial port, virtual serial port, USB VCOM, fake serial port; (it is a serial port device, no driver is required for win10, and drivers are required for win7 and below. This driver company provides); transfer to serial port tools, hyperterminal, etc. In the serial port receiving tool (the default display is hexadecimal; some tools display hexadecimal and decimal (the company can provide third-party serial port receiving tools under windows).

3. 2.4G serial port receiver (serial port):

(5) Serial port: (need to scan the code to set this interface). Chinese name/alias: serial port, RS232, 232 port, real serial port, physical serial port, UART, COM; (it is a serial port device, no driver is required); transferred to serial port tools, hyperterminal and other serial port receiving tools (default display 16 hexadecimal; some tools display hexadecimal and decimal (the company can provide third-party serial port receiving tools under windows).

4. Bluetooth:

(6) Bluetooth HID: (need to scan the code to set this interface). Chinese name/alias: Bluetooth keyboard. (It is a USB keyboard device, no driver is required); the scanned data is transferred to word, xls, text documents, web pages, etc., where the cursor is located.

(7) Bluetooth SPP: (need to scan the code to set this interface). Chinese name/alias: bluetooth serial port; (it is a bluetooth serial port device, no driver is required); transferred to the bluetooth serial port tool (the default displays hexadecimal; some tools display hexadecimal, 10 hexadecimal (the demo tool can go to the mobile phone) app store download).

(8) Bluetooth BLE: (need to scan the code to set this interface). Chinese name/alias: low-power Bluetooth; (it is a low-power Bluetooth communication protocol, no driver is required); passed to tools such as BLE Bluetooth assistant (default display hexadecimal; some tools display hexadecimal, 10 system (the demo tool can be downloaded from the mobile application market).

The models with all the above functions are XT6400, XT3001, etc.