Features 1、Multiple Applications: Professional dynamic microphone amplifier for stage performances, karaoke entertainment and live broadcasting, allowing you to enjoy premium sound. 2、Low Noise Design: The microphone amplifier reduces background noise for clearer recordings and truer sound quality. Increase the microphone volume to adapt to various environments. 3、High Gain: Improve sound clarity and amplify microphone volume through +28dB gain boost function, frequency range 20Hz‑20KHz, impedance 135 ohms, high SNR, can output pure sound. 4、Plug And Play: Standard XLR 3 pin male, female connector ensures a stable connection, easy to operate, plug and play, no need for complicated setup, convenient and quick to use. 5、Premium Materials: This microphone amplifier is made of premium metal and plastic materials, high durability, reliable quality, not easy to damage in long term use. Specification Item Type: Microphone Amplifier Material: Metal, Plastic Size: Approx. 95 x 19mm / 3.7 x 0.7in Model: HD1 Gain Boost: +28dB Connector: XLR 3 Pin Male, Female Power Supply: 48V Phantom Power Frequency Range: 20Hz-20kHz Impedance: 135Ohms Recommended Load Impedance: >1k Ohms Current Consumption: is 110dB Sampling Rate: 24 bit, 48kbps Sound Maximum Output Level: 9uv (A) Maximum Input Level: 8.3dBV, 2.6V (0.5%THD at 1kHz) SNR: 3.0mA Package List 1 x Microphone Amplifier