BACK PANEL FUNCTIONS:
16.AUDIO INPUT: Audio input L channel
17.AUDIO INPUT: Audio input R channel
18.SPEAKER OUTPUT: Speaker output clip, connect with passive speaker box by wires
19. POWER BUTTON: Power on/ off button
20.AC INPUT: AC power input
21.FM ANT : FM antenna
22.VOLTAGE SELECTION: To select AC110V 60HZ or 220V 50HZ
P-3