Precise and adjustable gain control for microphone output: 1.0 20 dB range lets you match your mic and environment, reducing distortion and ensuring consistent levels. Flexible power options and long battery life: powered by DC 5 12 V with a builtin 150 mAh battery that provides about 10 hours of continuous use after a full charge. Broad microphone compatibility: 3.5 mm port suitable for capacitive or inductive microphones, enabling easy integration with common mic types. Clear, clean audio with low noise: uses the MC33202 operational amplifier to deliver clear sound without distortions or noise. Use case scenarios: Home studio podcasting or voiceover: adjust the gain to achieve a professional, consistent vocal level without clipping or excess noise. Onthego interviews or field recording: portable power options and long battery life support extended recording sessions without frequent recharges. Online streaming, video calls, or conference settings: reliable mic preamp for steady, clear voice input during live sessions. Key specifications and features: Gain: 1.0 20 dB adjustable Power: DC 5 12 V Battery: builtin 150 mAh, 10 hours of continuous use after full charge Port: 3.5 mm, compatible with capacitive or inductive microphones Amplifier: MC33202 operational amplifier, for clear, distortion sound