The QFX PBX-615SM is a 15in woofer with 1.5in tweeter, rechargeable PA speaker system with speaker stand and wired microphone with built-in handle and wheels. This system packs a punch delivering full-range audio along with separate bass and treble controls. Connect the included wired microphone, adjust the mic echo and youve transformed your speaker into a karaoke machine. Keep the party alive with amazing RGB LED party lights while playing music from a variety of sources including Bluetooth-enabled devices, music stored on USB drives, TF cards or connect your favorite portable audio player directly to the auxiliary input. Add a second PBX-615SM and enjoy True Wireless Stereo TWS sound.