Headphone amplifier. The MYMonitor II allows blending of any microphone source with any stereo source in a convenient personal monitoring solution. The microphone thru provides direct connection to any mixer and will pass phantom power from the board for powering condenser microphones. Built for maximum flexibility, the ARTcessories MyMonitor II can be powered with the supplied 12 V DC power supply, or from an internal 9 V battery.The pop-less microphone on/off switch lets you locally mute the microphone. The headphone section has independent 1/8 '' and 1/4 '' TRS outputs with plenty of drive for both. Weight: 500 g.