LED USB 2 1 Wired Combination Speaker Bass Music Subwoofer for Desktop Laptop Notebook Tablet PC Smart Phone Home TheaterNoteIf you need Bluetooth, pls choose Bluetooth version to place order Hi-Fi StereoDual full-range drivers, experience 11w full-bodied stereo sound with enhanced bass and powerful volume Less than 1% total harmonic distortion ensures enhanced clarity and fidelity Volume ControlRotate the button clockwise or counterclockwise to adjust the volume, convenient to operate Independent Bass UnitAdjustment bass, rotate the knob and adjust, shows perfect interpretation of all kinds of music Bluetooth 4 2With wireless Bluetooth 4 2 technology, connect fast and stable, high-fidelity transmission and 10 meter Bluetooth range Speakers wireless compatible with Android, IOS and Windows AUX Wired ConnectionThrough 3 5mm AUX cable, the speaker can support music software such as Spotify,Pandora TuneIn,iHeartRadio,Apple Music,Last fm,Napster,Rhapsody,SiriusXM Internet Radio,Amazon Music etc USB Power SupplyPowered by USB cable, no worry about out of battery SpecificationBluetooth version: 4 2Sound: 2 1 ChannelBluetooth distance: