Behringer MicroMON MA400 Ultra-Compact Monitor Headphone Amplifier Ultra-compact monitor headphone amplifier for studio and stage applications Personal ''more me'' mixer  mix a mic plus a monitor signal and hear them via headphones Flexible Mic In and Mic Through connectors plus Ground Lift switch Stereo Monitor input with dedicated Monitor Level control and Mono/Stereo switch High-power headphone output on 1/4'' and 1/8'' jack connectors