150W+150W Power Output Digital and Mixing Karaoke Amplifier
5 Microphone Inputs (1 and 2 are both with individual Volume Control
8-way Equalizer Adjusting Function
USB/SD Reader Function
Mater Music and Microphone Volume Controls
Full Function Remote Control for Easy Operation
With Big and Digital LCD Display
With Step Digital Key Controller to Adjust the Key of the Music to Fit 
Your Vocal Range
Digital Echo with Repeat and Delay Controls to Add Depth and Space
Frequency Response: 10Hz-50KHz - 1.5db 
Input Sensitivity: 0.77v 
Input Impedance: 20k ohms 
Signal/Noise Ratio: >85db 
Crosstalk At Rated Output Power 8ohm 1kHz: >70db 
Indicators: Power (Blue), Clip (Red), Protect (yellow) 
Cooling: Variable Fan Speed 
Power Supply: AC 115V/230V 50-60Hz
Time delay start 
Short circuit protection 
DC protection 
Thermal Cutoff 
Large capacitor provide storage of bass
Machine size(WxDxH): 480x360x90mm