1.Professional Portable Mixer :The Q-12 Professional Portable Mixer is designed for professional use, ensuring high-quality sound mixing and recording. 2.Monitor Electric Guitar :With the ability to monitor electric guitar, this mixer is perfect for live broadcasts and recordings. 3.Live Broadcast Recording :The Q-12 Professional Portable Mixer is ideal for live broadcasts and recordings, allowing you to capture your music with ease. 4.Studio Singing Computer PC :This mixer is compatible with studio singing and computer PC, making it a versatile tool for any musician or producer. 5.Q-12 Professional Portable Mixer Sound Card with Monitor Electric Guitar Live Broadcast Recording for Studio Singing Computer PC Name: Usb Sound Card Microphone input: 1-2 (balanced) Frequency Response: -1 or -1db. 20hz-20khz Dynamic range: 82 dB Total Harmonic Distortion: and n 0.03percent , 1khz Maximum input level: and6dbu 4kq2 input resistance Gain range: and3db-and60db, HI-ZINPUT 2 (unbalanced) Maximum input level: and3.0dbv Input resistance: 1mq Gain range: -10db-and40db, 1 or 2 line input (balanced) Maximum input level: and10dbu Input resistance: 18.5kQ Gain Ranges:-10dB-and 40dB The appearance may be slightly different due to different factory batches, but it not affect the use Colour:Black Material:plastic Package Contents: 1 x Audio Mixer Sound Card 1 x USB Cable 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.