used karaoke system for sale

{"cid":"91184852","title":"Manufacturer Direct Sale Multimedia Karaoke Active Bluetooth USB Driver Loudspeaker 5 Inch","imgUrl":"https:\/\/img.chinax.com\/nimg\/16\/3a\/4faaf5ae7386fc741f61edfaefd3-200x200-1.jpg","attrs":{"Price":"289 USD","Brand Name":"Qinchao","Model Number":"QE520","Minimum Order Quantity":"1","Delivery Time":"Within 5 Working Days After Payment","Certification":"CE FCC ROHS","Place of Origin":"China","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"2000 Sets \/ Month","Model":"QE520","Description":"Active Hi-Fi Soundshelf Bluetooth Multimedia Speaker","Power Rating":"40W*2","Sensitivity":"500mV","SNR (Signal To Noise Ratio)":"> 83dB (A Weighting)","Frequency Response":"55Hz--20KHz","Impedance":"4\u03a9","Input voltage":"110V \/240V, 60Hz\/50Hz","Color":"Black \/ Wooden","Dimensions":"28cm*17.5cm*24cm"}}