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Rosewill R-Studio Bluetooth Wireless 2.1 Speaker for Computer and Tablet (SP-4310BT)

33 feet Bluetooth operating range- playback music wirelessly from your smartphone and mobile device
Down-firing subwoofer with immersed bass to let you experience your music
Tilted angle design of the satellite speakers project audio for the ultimate listening experience
Use as 21 computer speakers via a wired connection or as wireless Bluetooth 21 speakers
Control Power OnOff Volume Knob Bass Knob Audio Source
With Immersed bass to let you experience your music