Looking for a compact Bluetooth speaker that brings life to the party? The QFX BT-2 4 In. Rechargeable Party Sound System not only has a disco light, but can also stream audio, play files from USB flash drives and microSD Cards and play your favorite FM radio station! You can also connect 2 of these Bluetooth speakers using the TWS True Wireless Stereo technology! TWS is a wireless technology that allows 2 speakers (second speaker sold separately) to connect, sync and play audio simultaneously. Stream audio from your phone via Bluetooth to get true stereo sound!