― The LED lights on the frame of the product may be seen depending on the user's viewing angle. The light is harmless to people and has no bearing on product features
and performance. The product is safe to use.
Solutions
Check the connection of the audio cable or adjust the volume.
Check the volume.
Adjust the volume.
If the volume is still low after turning it up to the maximum level, adjust the volume on your PC sound
card or software program.
Sound cannot be heard if a HDMI-DVI cable is used to connect the input device.
Connect the device using an HDMI cable.
Solutions
If a beeping sound is heard when your PC is booting, have your PC serviced.