Gain Switch and Quality Sound Performance Adjustable gain function with support for DC5‑12V electret microphone power supply. Utilizes the railtorail MC33202 operational amplifier for louder, clearer, and more detailed stereo sound without distortion. Designed to deliver consistent audio quality for both recording and playback applications. Wide Compatibility for Multiple Microphone Types 3.5mm input interface with builtin bias, compatible with electret microphone capsules or 3.5mm capacitor microphones. Ideal for upgrading existing microphone setups or integrating with different audio equipment. Flexible Output Options Three output ports allow independent audio output for microphone and music signals, or mixed output for combined playback. Mixed output port can directly drive headphones for realtime listening without the need for additional amplification equipment. Versatile Interface Design 3.5mm output interface suitable for connecting to microphone inputs on other audio devices, auxiliary inputs, or LINE inputs. Note: Direct headphone listening is only supported via the mixed output port. Standard preamplifier output cannot drive headphones directly. Typical Applications 1. Live streaming or podcast setups where clear, distortion voice capture is essential. 2. Connecting an external microphone to portable audio recorders or mixers for field recording or interviews. 3. Integrating with home studio equipment to amplify and monitor both voice and background music sources simultaneously. This microphone amplifier combines precision gain control, broad compatibility, and flexible output routing for both professional and audio needs. Its compact design and performance components make it a reliable choice for users requiring clear sound, adaptable connectivity, and practical monitoring options.