The Pyle PCAU25A is a compact stereo power amplifier system designed to deliver high-quality audio with versatile connectivity options. This amplifier features Bluetooth wireless streaming, Fm radio, Usb/Sd card media playback, and 3.5mm Aux input. It supports MP3 and Wma file formats and includes treble, bass, and master volume controls for audio customization. The amplifier provides 2 x 40W output power, with Rca L/R audio input and speaker terminals for easy speaker connections. Its blue Led display shows media playback information, and it includes a remote control for convenient operation.