To be able to conveniently switch between different monitors in the studio for the purpose of reference listening, a monitor controller is advisable. PreSonus' MicroStation BT is designed to do just that, even wirelessly thanks to its Bluetooth 5.1 interface. The stereo Bluetooth input expands any speakers, so that a tablet or smartphone can also be connected to the speakers. The pairing function is used to quickly connect the Bluetooth devices. But analog signals are also welcome. A stereo pair with balanced jack connection and an aux connection for studio or hi-fi devices with mini jack, are recorded as line and aux inputs, respectively.