The Rolls MP213 is a dual-channel microphone preamplifier that is designed to provide a small, simple solution for a variety of applications. The mixer features a servo-balanced instrumentation amplifier for studio-grade performance in a small, portable chassis. The unit has 3.5mm and XLR inputs, XLR and 3.5mm outputs, and dual gain controls, each with a clip indicator. Phantom power (+48V) is included for use with condenser microphones. Each XLR input offers up to 60dB of gain, while the 3.5mm inputs offer up to 54dB of gain. The 3.5mm output is specifically designed for use as a camera microphone mixer or a monitoring output. Box Contains Rolls MP213 Two-Channel Microphone Preamplifier 1 External Power Supply.