Famous Korea Jarguar S-1000 platium karaoke processor, has optical, bluetooth, RCA input, also has xlr and 1/4 inch ouput. Made in Korea 100%, 220V with USA 110 Voltage converter (very small converter) amazing sound with echo & reverb effect, also has FBX from microphone howling, also has XLR microphone input. Please contact me with any question. Xin goi so 4 khong bay 9 hai chin 2 ba khong mot se duoc giam gia.