The PreSonus MicroStation BT is a desktop monitor controller that adds Bluetooth connectivity to studio or powered speakers and supports a 2.1 setup with subwoofer output. It features two balanced ¼″ TRS inputs for pro gear, a stereo ⅛″ input for consumer devices, outputs to monitors and subwoofer, a headphone/aux output, and a large volume knob. There are buttons to toggle Bluetooth on/off, mute, and bypass the subwoofer. It’s USB-C powered and lets you easily switch between analog and wireless sources.