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4.1 Built-in Microphone
Short press the microphone icon to switch the built-in microphone pickup or mute.
4.2 Built-in Speakers & External Speakers
Click the speaker icon in the gray area to pop up the volume adjustment bar. Click the
"volume icon" on the left side of the adjustment bar to quickly mute the sound.
Key points of speaker operation:
When the external audio equipment is not connected, the volume of the built-in speaker
is adjusted.
When an external audio device is connected, it adjusts the volume output to the external
audio device. At this time, the built-in speaker switches to a silent state.
Directly press the "blue speaker icon" to quickly turn off the sound. When the sound is
turned off, the status indicator icon is red.
The interface is plugged into a 3.5mm audio head, it is recognized as connecting to an external
speaker.
4.3 USB Connection Instructions
It is a USB connection status indicator, gray means USB is not connected, Blue means
USB is connected. Slide the gain bar above the indicator to adjust the USB audio input and
output gain.
The gain bar with the arrow outward, adjusts the audio gain output to the PC or terminal.
The gain bar with the arrow inward adjusts the audio gain of the input device.
4.4 Phone 3.5 & Bluetooth
Click the gray area Phone3.5 indicator to pop up Bluetooth and 3.5mm connection
interface. The interface includes the following functions:
Sub-module function:
Provide a quick entry to establish a Bluetooth connection.
Real-time display of Phone 3.5mm or Bluetooth connection status
Adjust the audio gain of the phone in headset mode.