The Pyle PDA4BU is a versatile Bluetooth stereo amplifier receiver designed for home audio and entertainment systems. It supports wireless Bluetooth streaming, MP3 and Wav digital audio files, and offers a variety of input options, including Usb/Sd memory card readers, optical, phono, and coaxial connections. With two 1/4" microphone inputs, this amplifier is perfect for karaoke or public speaking. It includes a digital Led display and allows easy volume and tone control adjustments. Ideal for both home theater and desktop setups, this amplifier delivers high-quality audio with 200W Max power output.