2 0 channel wireless bluetooth bookshelf speakers

{"cid":"91222503","title":"5 Channel Multi Channel Amplifier with Bluetooth 5.0 and 400W Peak Power for Home Theater","imgUrl":"https:\/\/img.chinax.com\/nimg\/52\/bf\/679bdf75eda2089141fd4641004b-200x200-1.jpg","attrs":{"Price":"$93.50-98.50","Model Number":"BTA-450","Minimum Order Quantity":"300","Place of Origin":"Guangdong, China","Output Power":"4*50 W output RMS","Max Output Power":"400 watts","Output Impedance":"4 ohm","Bluetooth Version":"V5.0","Frequency Response":"20-20KHz","Net Weight":"2kg","THD":"< 0.05% (@ 1kHz)","S\/N Ratio":"> 95dB","Output Noise":"< 1mv","Input Sensitivity":"580 mv","Work Efficiency":"more than 85%","Working Voltage":"AC 110-240V\/50Hz","Number of Channels":"4.1 channel amplifier,4 speaker outputs,1 subwoofer output","Input Methods":"Bluetooth, HD-MI (ARC\/CEC), Line in(3.5MM), Optical, Coaxial","Panel Material":"Aluminum"}}