The sound card of a normal pc supports only one microphone input and this is far from requirement for karaoke. Microphone Amplifier has two 6.35mm jacks for microphone input. In this way, two persons can sing together with two professional microphones. Microphone Amplifier has the function of mixer. The delay time and echo depth can be adjusted. Microphone Amplifier also has the function of volume control and you can adjust the volume of the microphone. Microphone Amplifier supports Dynamic microphone and Condenser microphone. This amplifier can be used as a normal one by turning off the echo effect. The timbre is good and the SNR is high. Microphone Amplifier is convenient to use by inserting into the pc. The power comes from the USB port and other electrical source is not necessary. The amplifier is light and credible.

Features:
•Echo Time: 0-200ms
•Echo degree: 0-12 times
•Frequency response: 30-16000Hz
•Distortion: 0.5% (echo off), 1.5% (echo on)
•SNR: 80dB
•Working current: 60-100mA