R90 Bluetooth Computer Speakers for Desktop, USB Powered 3.5mm AUX PC Speakers with LED Dynamic Light, Portable Soundbar Speaker with Rotary Volume...

AUX MODEJust plug into the USB port for power, the 3.5mm jack for audio. Press the 'M' button to switch to 'Aux Mode' and adjust the volume +/- with rotate button on the computer speakers BLUETOOTH MODE Built-in V5.3 Bluetooth technology, allows the speaker wirelessly connect cellphone, tablet, PC via Bluetooth, more convenient playback. Press the ' M ' button switch to Bluetooth Mode and then search ' R90' on smartphone/tablet to connect 4 DYNAMIC LIGHT MODESWith 4 modes colorful led lights effects, which can be switched in one click. You can also turn on/off the light by the light button on the sound bar. With these lights to enhance the atmosphere of listening to music watching movies, and playing games EASY TO USERotary knob for volume +/-. Click M button to switch between AUX and Bluetooth Mode. And long press 3 seconds for power on/off.