It’s because the home button was pressed for too long. Press the home button for 1 second and the voice control will come out.

Turn off voice control, the specific steps are as follows:

Tool: iPhone7 mobile phone

1. First, find the settings icon on the phone desktop and click to open it That’s it, as shown in the picture below.

2. Next, in the settings page, scroll down to find the General item and click it, as shown in the figure below.

3. Then, after entering the general options page, find the "Accessibility" option and click it, as shown in the figure below.

4. Next, in the accessibility page, find and click the "Home Screen Button" option, as shown in the figure below.

5. Then, on the home screen button page, you can see that "Voice Control" is turned on, as shown in the figure below.

6. Finally, at this time, click "Close" below to turn off voice control, as shown in the figure below.