F-4A Professional Wireless 4-channel Audio Mixer Portable Bluetooth-compatible USB Sound Mixing Console Input Phantom Power Monitor for PC Computer Record Karaoke        Specification:        Model: F-4A        Gain range: 10 Hz to 200 kHz        Signal to noise ratio: +14 dB to +60 dB        Line input: 120 dB E.I.N.        Frequency response: electronic balance        Gain range: 10 Hz to 130 kHz        Signal-to-noise ratio: -6 dB to +38 dB        Low: 50 Hz, +/-15 dB        Intermediate frequency: 700 Hz, +/- 15 dB        HI: 10 kHz, +/- 15dB        Main mix        Main output: +28 dBu balanced/+22 dBu unbalanced        AUX send: +22 dBu unbalanced        EFF send: +22 dBu unbalanced        Tape Out: +22 dBu unbalanced        Headphone output: +15 dBu/150        Plug: US, EU        Size: 180*150*50mm        Weight: 650g        Packing size: 200*160*65mm        Package weight: 700g                 Note:        Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you                 Please allow 1-2cm measuring deviation due to manual measurement.                                                          1*Mixer                         1*Power                         1*Connecting Cable                         1*Chinese and English Manual