12" Powered Loudspeaker with Bluetooth Audio*. ZLX portable loudspeakers offer the best performance and reliability in their class - with components and engineering that work together to make it quicker and easier to take control of your sound, whatever the gig. With Bluetooth enabled wireless audio streaming, legendary ZLX performance becomes even more convenient with the ability to connect to any mobile device for streaming your music library. High‑quality Bluetooth audio streaming for background music or musical accompaniment. High‑efficiency 1000 W Class‑D power amplifier delivers up to 126 dB peak SPL utilizing transducers designed and engineered by EV. EV Signal Synchronized Transducers (SST) waveguide design provides precise and consistent coverage, minimal distortion, and maximized acoustical loading. Three optimally located handles combined with a rugged composite structure provides the most portable professional sound speaker on the market.