The Pyle PMAX4 Compact Bluetooth 4-Channel Line Mixer is a versatile and portable audio solution for mixing both mono and stereo signals. With its ultra-low noise design, it delivers clear sound with high headroom. The built-in Bluetooth 5.0 connectivity allows you to wirelessly stream music from your smartphone, tablet, or other devices up to 50 feet away. Additionally, the integrated Usb sound card enables easy computer playback and recording. The rugged metal chassis ensures durability, and its compact size makes it ideal for on-the-go mixing, whether in a studio or during live performances.