skytec active speaker 15' with top frequency horn,2 mic-line inputs, eq,echo. | eBay
User manual Skytec SP1500A (English - 20 pages)
Amazon.com: PYLE-PRO Powered Bluetooth PA Microphone System - 15" Active Bass Subwoofer Loudspeaker Built-in USB for MP3 Amplifier - DJ Party Portable Sound Stereo Amp Sub Concert Audio or Band Music PPHP1537UB :