[USB Mode]: Just plug the USB connector of computer speakers into the USB port (such as a laptop, PC host, usb port audio adapter) and it will automatic power on. No drivers or software need to be installed | [Bluetooth Mode]: Plug the USB connector and double-click the knob button to change into bluetooth mode. Search " R30 Plus" on smartphone and connect | [6 LED Lighting Effects]: The soundbar adopts LED rainbow lights on both sides. It provides a more attractive atmosphere when listen to music or watch movies. One click knob button to change 6 kinds of light effect modes | [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 | [Clearly & Powerful Sound]: Soulion sound bar 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 | [Wide Compatibility]: The sound bar supports most of the devices with standard USB jack. Compatible with PC, Computer, Laptop, Tablet, Smartphones. (Note: Bluetooth Mode need USB Powered)