That's a new design portable handy audio combo, portable Audio Mixer system, PA system (SY-100)
Superior audio perfromance with perfect function, low noise and full-power, fill-spectrum transparent audio and natural sound with selectable echo effects;

SY-100 specification:
4-Channel 200 W RMS stereo powered mixer, 100W RMS per side @ 4 ohms
Two-way speaker system with 8" woofer and piezoelectric tweeter horn with base mounts for ease of mounting on
Speaker stands. 20' speaker cables included.
4 each XLR mic and 1/4" line inputs, each with Input Gain, High, Mid, Low, Effects, Pan and Channel Level Controls.
Master Section with High, Mid, and Master Level Controls, External Effect Loop Send and Return jacks, Stereo Tape In/
Rec Out controls with a Tape In level control, and built-in Reverb/Delay with Time, Depth and Effect Volume controls.
115V(60Hz)/230V(50Hz) voltage select switch for worldwide operation
Storage compartment for microphones, cables and accessories

Mic input impedance 600 ohms input level -60dB;
Line input impedance 47K ohms input level -20dB;
Tape input: Input impedance 47K ohms;
Input level -20dB;
Frequency response: 80Hz-16KHz
Fan cooled, bipolar amplifier design for longer life and maximum reliability
Cabinet with internal stand holes

Convenient portable PA package with carrying/pulling handle and wheels for easy transport

Wooden case, well carpeted(painted is optional)