Headphone jack
You can connect headphones directly to the speaker that is usually more convenient then connecting them to the PC itself. The volume level can be adjusted with the volume control on the speaker
LED backlight
Volume control with built-in on/off switch
Compact size
USB powered
It is recommended to connect the speakers to a separate USB adapter, for example, from a phone. This will help to avoid additional interference and noise that often occur in the USB outputs of a computer or laptop.