TEYUN NA4 4-channel Small Mixing Console Mobile Phone Sound Card Live Broadcast Computer Recording Console Processor, US Plug(Black) Features 1. Mixing console The analog mixing console is combined with a digital sound card, with 4 channels, personalized function settings, and convenient console design, giving you a different tuning experience. 2. Intelligent noise reduction, high-fidelity sound quality, clear and bright vocals. 3. Built-in high-speed ARM chip, with unique low-noise, voice-changing, pitch-changing, reverberation, delay, electronic sound effects and other processing technologies. 4. For wireless Bluetooth connection, switch to Bluetooth mode, turn on the electronic device with Bluetooth function, and search for the connection. 5. Support audio equipment with USB2.0 interface, lossless sound quality playback, all in NA4 analog digital mixer. 6. The flexible LOOPBACK function is perfect for recording and webcasting. The LXR combined microphone input interface is adopted, and the level of the recording state is visible, which is convenient for flexible adjustment at any time. Specification 1. FR: Input STEREO OUT 0.5dB -1.0dB (20Hz-20kHz), test rated output level @1kHz, GAIN knob: Medium 2. Input: mic x 2, 2RCA, PC, 2LINE, USB, Bluetooth, 3.5mini 3. Output: STEREO OUT: 2, PHONES: 3.5MINI MAINPH OUT: 1, 3.5MINI LOOPBACK OL 4. Bus: Stereo: 1 5. Input channel function: HPF (mono): 80Hz, 12dB Octave (CH3,4) 6. EQ high gain: + 15dB -15dB, frequency response: 10kHz ramp frequency Equalization low gain: + 15dB -15dB, frequency response: 100Hz ramp frequency Peak LED: When the signal after EQ reaches 3dB below the distortion, the LED lights up 7. Level indicates the MAIN STETREO LEVEL knob, the green light is on when the signal after MAIN LEVE is on When it reaches 0dB, when the signal reaches 0dB below the distortion, the red light will be clipped, and the LED will light up and light up. 8. Input and output level: MIC (-60dB) LINE ONPUT (-40dB)