Lenovo IdeaPad U310 Touch Notebook - Manual (Page 9)

Chapter 1. Getting to know your computer
5
Combo audio
jack Connects to headphones or headsets. The combo audio
jack does not support conventional microphones.
Note: Recording may not be supported if third-party headphones or headsets are
connected, due to different industry standards.
Built-in
microphone The built-in microphone (with noise reduction) can be
used for video conferencing, voice narration, or simple
audio recordings.
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