Xiaomi TVs generally use the remote control for voice commands. Here are some steps on how to enable voice recognition and voice commands on the Mi TV 4S 65:
1. Voice recognition and voice commands usually require an active internet connection. Ensure your Xiaomi TV is connected to a Wi-Fi network.
2. Enable voice recognition and voice commands:
(1). Once connected to the Internet, you can press the voice button on your remote (it's usually a microphone or a colorful icon) and speak your command, and the TV should recognize your voice command.
(2). You can also select the [Microphone] icon at the upper left corner of the home screen >> sign in your Google account >> speak your command.
3. Disable voice recognition and voice commands:
The voice recognition and the voice command are typically disabled when you're not pressing the voice button.