1.The mixer adopts double-panel patch technology, which has lower noise and higher quality. Non-market general plug-in technology is comparable.2.The true pressure limit function, the imported potentiometer fader, the self-locking button, these functions and the use of imported materials provide a guarantee for the sound quality, performance and stability of our mixer. We have always insisted on high performance and high quality.3.It can be directly connected to the device interface with USB, the LCD large bubble wood clearly displays the song playback status, with a recording function, and can also be connected to a recorder to play audio4.Built-in Bluetooth function, the mobile phone can open the Bluetooth search and link. Built-in two UHF professional wireless microphones5.High-quality interface + LCD screen mp3 player + foot pad British potentiometer + high-quality input interface + 48V fantasy power supply + indicator light you deserveMaximum input level: microphone input + 22dbu / line input + 20bu;Maximum output level + 22dbu main channel level display: 2LED from signal to peak value; Input channel level: 1 led peak displayFrequency response range: 20Hz to 22khz 1dB;CMRR (mc1khz): Greater than 75dbTotal harmonic loss: Less than 005% (channel input to output)Resolution (at 1kHz: channel mute): Greater than 80dBNoise figure, (ms22hzt22khz): equivalent SNR - 122d U residual output noise Less than 8dbu mono / stereo input channel equalizer: treble, broom, + 15d8, 12khz bass, broom, + 1-15db, 80h maximum input power: dc5ca5wattNet weight: 1510gsize:15x18x3.5CMMaterial:metalcolour:BlackPackage Contents:1 x Mixer2 x microphone1 x USB power cordOnly the above package content, other products are not included.Note: Light shooting 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.