Active PA Speaker System, 8 inch Compact And Portable DJ speakers with Bluetooth MP3/SD/FM/Remote Control/Wired microphone - Newegg.com
PRORECK Club 4000 18-inch 4000W P.M.P.O Stereo DJ/Powered PA Speaker System Combo Set Line Array Speaker and 18 inch Active Subwoofer with Bluetooth/USB/SD Card/Remote Control - Newegg.com
Preamp Active Speaker Volume Controller Rca Connector 128mm Fader Precision Volume Adjustment Controller Speaker Audio Adjuster - Electric Instrument Parts & Accessories - AliExpress