Audio-Technica ATH-M50xBT2 Wireless Over-Ear Headphones (Black) - Manual (Page 21)

Using the product
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What you can do with the app
The app allows you to use the following functions. For details, refer to the app screen.
Function Description.
Audio Codecs You can change the connection codec.
Low Latency Mode
Low latency mode reduces sound delay when playing games or watching
videos.
Equalizer You can adjust the equalizer settings.
L/R Balance Adjustment You can adjust the left-right volume balance.
Voice Assistant You can set what to activate with the voice assistant button.
Side Tone
You can turn on or off the side tone function that captures your own voice
and ambient sounds through the microphone during a call (the function is
on at the time of purchase).
Guide Sounds The product's voice guidance can be changed to a confirmation tone.