xdobo sinoband Party 1981 II Bluetooth speaker

Model:Party 1981 II
Brand:sinoband
Bluetooth version:5.3
Output power:300W
Play mode:BT/AUX/TF card/USB
Frequency response:20Hz-20KHz
Signal-to-noise ratio:80dB
Charge time:about 3.5 hours(PD Fast Charger)
Input power:PD 20V/3A(MAX)
Music playing time:about 20 hours(varies by volume level and audio content) 
Size:262x180x365.3mm
Weight:8150g
speaker+2pcs microphone