Description:  1. It can support many people to sing at the same time. Let you and your friends enjoy the fun of singing.  2. Full function infrared control convenient man-machine dialogue, make its function operation simple and easy to understand, let you do whatever you want.  3. Wireless Bluetooth, easy to connect smart phones, tablet computers and other Bluetooth devices, USB interface, that is, broadcast and use, and enjoy high quality music.  4. This machine has a USB interface, and a built-in MP3 pointer is used to download the music you like to the disk and insert it into the machine, and instantly plug and play without waiting.  5. The main volume, the high tone adjustment and the bass adjustment are all adjusted by the analog components to upgrade the mini mixer, allowing you to play the music world and give you the real HIFI sound effect.     Feature:  Rated Power: 80W + 80W.  Peak Power: 300W + 300W.  Standard Impedance: 4 - 16 ohms.  Frequency Response: 20KH - 20KHZ(±3DB).  Signal-to-noise Ratio: ≥ 90DB (A Power).  Total Harmonic Distortion: ≤ 0.5% (Normal Working Conditions).  Signal Input Sensitivity: 200MV(±30MV).  MIC Input Sensitivity: 9MV(±2MV).  Recording Level Output: ≈1V.  Auxiliary Level Output: ≈1V.  Use Of Voltage: 220V-240V 50/60HZ 12V DC.     Package Included:  1 X Home/Car Amplifier;  1 X Remote Control;  1 X User's Manual