BIK BJ-A88 Karaoke Amplifier

Maximum Output Power    240W + 240W at 8Ω
Frequency Response    Music & Mic 20 - 20 KHz +/- 3 dB 
Total Harmonic Distortion    0.08%
Speaker Impedance    4 to 8Ω (Spk A or B)
Speaker Output    Knob Type Terminal / A+B speaker output
Audio Inputs    VOD / AUX / Optical / Coaxial
Audio Inputs    Bluetooth / USB / SD Card
Microphone Inputs Sentivity    Mic 1, 2/A, 3A Front / Mic A & B Rear (20mV)
Audio Outputs    Sub & Pre-Out
External Remote Input    Yes
Key Control    13 Steps +/- 2.5 pitch
Echo Control    Echo Volume / Delay / Repeat /Bass, Mid, Treble
Microphone Tone Control    Bass / Mid / Treble
Music Tone Control    Bass / Mid / Treble / Balance
Power Supply    AC 220V-240V 50Hz
Unit Dimension (WxHxD)    430 X 148 X 327 (mm)
Unit Weight    13KG