The PK108A is a super compact, exceptional 2-way, 250-Watt powered Pa sound-reinforcement loudspeaker with built-in media player and Bluetooth that is ideal for live sound, portable Pa, Karaoke, monitor wedge and House of Worship applications.This amazingly self-contained Pa solution that merges 250-Watt Class-ab power amp technology with an integrated 2-channel mixer and standalone microphone channel, built-in Bluetooth, a high-performance MP3 player with Usb stick/Sd/Mmc card slots and exceptional portability. A convenient Power Line output allows you to connect multiple PK108 passive speakers while fast-link Bluetooth connectivity allows true stereo reproduction with another PK108A. Sound reinforcement has never been so easy!Bluetooth ReadyWe know your music lives on your phone, computer or tablet, so we've made it easy to access and play through the PK108A.