Soulion R30 Computer Speakers, Colorful Led Lights With Switch Button,, Gray [Clearly Powerful Sound] Soulion sound bar speaker is driven by the exclusive booster technology and with 2 full-range speakers, to make the sound be more stunning, crisp and mesmerizing even at low volumes. [Easy Control Connect] Just plug in the USB port for power and 3.5mm jack for sound. Rotate the knob for volume to start the oomph. A small switch button to turn ON/OFF the LED lights power. [Slanted Design] The 30-degree micro-inclined design allows the sound to be better conveyed. There is a layer of breathable cloth on the outside of the speaker to avoid the dust. The material of the whole soundbar provides a comfortable and slippery touch. [Brilliant Lights Effects] The soundbar adopts LED rainbow lights on both sides. It provides a more attractive atmosphere when listen to music or watch movies. There is a small button behind the sound bar that controls the light switching on and off. [Wide Compatibility] The sound bar supports most of the devices with standard 3.5mm jack. Compatible with PC, Computer, Laptop, Tablet, Smartphones. (Note: Need USB Powered and not compatible with on iMac). Any questions, pls feel free to contact us.