1. Support reading MP3 songs in TF card and U disk; 2. Support independent adjustment of treble, bass and master volume; 3.Working Voltage : AC 220V or DC 12~24V 4.With AUX Audio input, can be connected to the computer, mobile phone or CD 5.Rate Power:100W 6.Power output:100W-300W 7.Dual microphone input, adjustable reverb; built-in Bluetooth wireless Receiver and FM radio. 8.Support Wireless Microphone Board(not include) Package include: 1PC Amplifier Board 1PC Remote control 1PC Audio Cable 1PC Power cable(US/EU/AU) 1PC DC Head Notice: Please turn off the small master volume before power-on test. Then increase the volume slowly after power-on. If the sound is intermittent or the sound is hoarse and distorted during the process of increasing the volume, the speaker and the amplifier are not matched. Please use the small sound or change the package.