Feature: 1. High Gain of 28dB: When combined with a sound card and microphone, the in line mic preamp provides a pure gain of 28dB, effectively boosting the voice signal and making post processing of sound more seamless. 2. Lossless Amplification: The microphone preamp's gain effect minimally affects the original sound quality, while also reducing the noise issues that may arise from excessive gain in the sound card itself, ensuring a worry free experience. 3. Plug and Play: Simply connect the microphone preamp to the mixer, and power it using the 48V phantom power supply from the microphone input on the sound card. This provides a fixed gain volume of 28dB. (Note: The preamp may drain the 48V phantom power, so it is not suitable for capacitor microphones that require phantom power.) 4. Stylish and Durable: With a sturdy matte metal casing, the microphone preamp boasts a stylish and minimalist design. It is compact, lightweight, and portable, making it convenient to carry around. 5. Versatile Applications: Ideal for studio recording, live news broadcasting, stage performances, large scale speeches, home entertainment, musical instrument playing, and other scenarios. Specification: Item Type: Inline Microphone Preamp Material: Aluminum Alloy Weight: Approx. 60g/2.1oz Gain Boost: 28dB Connector: XLR 3 Pin Male/Female Power Supply: 48V According to IEC 61938 Frequency Range: 10 to 120000Hz Impedance: 135 Ohms Recommended Impedance Electronic Load: >1k Ohms Sampling Rate: 24 Bit/48kbps Sound Signal to Noise Ratio: 3.0mA Output Noise: 9uV (JIS A) Maximum Input Level: 8.3dBV/2.6V (0.5% THD). Package List: 1 x Microphone Preamp 1 x User Manual