5 DYNAMIC LIGHT MODESWith 5 colorful led lights effects, which can be switched in one click. You can also turn on/off the light by the control button. With these lights to enhance the atmosphere of listening to music watching movies and playing games USB PLUG & PLAYJust plug in the USB port for power and sound. Press the " M " button to PC mode to start and control the volume +/- with rotate button on the computer speakers BLUETOOTH MODE Built-in V5.3 Bluetooth technology, allows the speaker connect cellphone, tablet, PC via Bluetooth, more convenient playback. Press the " M " button switch to bluetooth mode and then search " R60" on smartphone/tablet to connect STEREO & CLEAR SOUNDFrequency range of 20 Hz - 20 KHz. The SOULION computer speakers can provide clear & loud sound, bringing you Immersive sound effect and enhance your listening experience when you enjoying indoor movies, videos, music and games EASY TO USERotary knob for power on/off