●About sound

[Q/Req] I want to connect to an external speaker and play the sound.

[Ans] Remove the earphone from the cell phone, attach the "3.5mm mini stereo cable" instead, and connect the end of the cable to the external speaker (amplifier built-in speaker). If the input terminal of the external speaker is not a mini jack, please use a suitable adapter. When connecting, set the volume of the external speaker to 0, and increase the volume within the range where howling does not occur. In addition, if the speaker output sound enters the microphone of the cell phone and noise occurs, tap the "gear icon" on the screen and lower the "inputGain" on the right end.

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●Launching and closing apps

[Q/Req] I can't quit the app.

[Ans] Press ■ on the navigation bar displayed on the bottom side of the cell phone and tap

"Clear All" to exit and return to the screen before launching the app. Press the ◀ button to switch to the screen before launching the app without exiting the app. In addition, since the navigation bar is hidden on cell phones that only have a USB_C terminal (eg GooglePixel), tap the edge of the cell phone screen on the USB_C terminal side to display the navigation bar, then Please follow the procedure above.

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