If you are attending virtual classes in the LRC using your media devices (e.g. smartphone, laptop) or PCs in the LRC, please use a listening device such as headphones, earphones or earbuds. This ensures that you are not disturbing other LRC users. Also the audio is much better compared with the device speakers.
This ruling also applies to any other audio related media such as screencasts, video streaming, audio books, etc.
Always remember to be courteous and considerate of those around you.