13 14 MP3 LEVEL DIGITAL DISPLAY WITH REMOTE CONTROL SD card 17 15 MIC LEVEL USB 16 USB/SD BT/FM 2 SCAN 1 3 LINE LEVEL 5 TREBLE 4 -12 +12 -12 +12 6 19 9 SPEAKER OUT 8Ω LINE OUT 120 V 240V 7 8 10 18 12 11 AC 120V 60Hz/AC 240V 50Hz 1.6.35mm microphone(unbalanced)input 2.Mic input level control 3.RCA phono line inputs 4.XLR line input 5.Line input level control 6.6.35mm line output(unbalanced) 7.Treble control for high frequencies 8.Bass control for low fequenncies 9.