The Pyle PCM20A is a compact and high-powered 25V/70V Pa amplifier designed for public address systems, karaoke, and audio control applications. This amplifier features (2) 1/4"" microphone inputs, (1) 1/4"" aux input, and the ability to connect up to 4 speakers. It offers Bluetooth wireless streaming, Fm radio support, and Usb/Sd playback. With 40W of power, this amplifier is ideal for a variety of audio setups. It also includes independent microphone/aux volume controls, bass and treble tone adjustments, and a convenient remote control.