Feature:1. PROFESSIONAL PREAMPLIFIER: Specially designed to increase the volume and sensitivity of dynamic microphones, it can effectively enhance the sound performance of microphones.2. NOISE REDUCTION: Built in intelligent noise reduction function, which can effectively eliminate the surrounding noises and interferences, and enhance the purity and clarity, especially outstanding performance when dealing with vocals.3. XLR MIC JACK: Designed with XLR microphone jack, plug and play, convenient and fast. Moving coil microphone converts to balanced input, providing 48V conversion port.4. GAIN BOOST: The 48V preamplifier can be connected directly to a mixing console to provide a 28DB fixed gain volume. This design makes the preamp more flexible.5. MULTIPLE APPLICABLE SCENARIO: Suitable for mixing consoles, Karaoke sound cards, professional video cameras and other equipment with XLR microphone connectors.Specification:Item Type: Microphone PreamplifierMaterial: Aluminum AlloySignal To Noise Ratio: 3.0mAGain Boost: +28DBConnection Port: XLR 3 Pin Card Male, FemalePower Supply: 48V Phantom PowerFrequency Range: 20Hz-20KHzImpedance: 1350hmsRecommended Impedance Load: >1kOhmsCurrent Consumption: 110dBMaximum Output Level: 9uv (A)Maximum Input Level: 8.3dBV12.6V (0.5%THD 1kHz).Package List:1 x Microphone Preamplifier1 x Instruction Manual1 x Storage Box