Soulion R90 Bluetooth Computer Speakers For Desktop, Usb Powered 3.5Mm Aux Pc Product Details ?AUX MODE?Just 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 MODES?With 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 USE?Rotary knob for volume +/-. Click ?M? button to switch between AUX and Bluetooth Mode. And long press 3 seconds for power on/off. One click light button to turn on/off or change light modes and long Press 3 seconds to wipe off reset bluetooth connection ?WIDE COMPATIBILITY?USB Powered Soundbar Speakers supports most of the devices with standard 3.5mm jack. Compatible with PC, Computer, Laptop, Smartphones Tablet or other devices (Note: Need USB Powered) Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.