Remote Work & Learning
Interactive Display | Signage
When making a call in Bluetooth mode, Bluetooth uses HFP (Hands-free Profile) to handle the call, and device software uses this as a signal to turn on the microphone.While connecting with an audio cable, an analog signal is used for transmission and cannot distinguish whether the transmission is general voice or music, so it cannot switch to the live class mode automatically. You can manually switch the mode to live class to improve sound quality.
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