Kramer 102MX 2 Channel Stereo Audio Mixer The Kramer 102MX is a high performance audio mixer for small studio and presentation applications. The 102MX mixes two audio signals - a stereo line level signal with either a monophonic microphone or a line level signal. The microphone can be either a Condenser or a dynamic mic, selectable by the user. A Talk-Over function may be enabled by the user, which will mute the line input when the microphone detects sound. The 102MX has three controls - Mic/Line level, Line 2 Level and Master Level. A 12V power supply is included. The 102MX is part of the Kramer TOOLS family of compact, high quality, and cost effective solutions for a variety of applications.