Power: 40W
Impedance: 4 Ohm
Input efficiency: 93 ? 3 dB
Frequency Response: 50Hz~20kHz
S/N ratio: >= 71 dB
Harmonic distortion: <= 0.7% (1W)
Speaker: 1? + 12?
Bluetooth: Yes
Ports: USB, SD card reader
Wireless Microphone Frequency: 202.2MHz / 185.15MHz
FM Radio: 87.50-108.00MHz
Power supply: 100 ? 240 V; 50/60 Hz
Included: 2 wireless microphones
Active speaker with 2 microphones wireless, SD, Bluetooth, USB) 12" 40
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