Xtream S2B BlueTooth 3.0 speaker, phone capable, Deep base sub woofer, black, connect up to 2 devices simultaneously. The Adesso Xtream S2 features Bluetooth 3.0 wireless hands-free audio with built-in Double Bass Subwoofer Sound Technology, and Left & Right speakers for high quality stereo sound. You can also make flawless hands-free phone calls by using the integrated omni-directional microphone. Never run out of battery with the iOS on-screen indicator on your phone or Tablet. With Multipoint technology you can connect up to two devices at the same time. The Xtream S2 is portable for travel so you can have high quality sound anywhere you go!