4 1 channel wireless surround sound amplifier

{"cid":"91222503","title":"Surround Sound Home Theater Receiver Amplifier Bluetooth Home Audio Amplifier For TV","imgUrl":"https:\/\/img.chinax.com\/nimg\/a5\/4d\/29926af9851b3d744a15c15d6c02-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Vistron Audio, support OEM\/ODM","Model Number":"BTA-450","Minimum Order Quantity":"300 pcs","Delivery Time":"40-50 days","Certification":"CE, ROHS, FCC, UL, as your request","Place of Origin":"China","Payment Terms":"T\/T, L\/C, Western Union\uff0cPaypal","Supply Ability":"50000 pcs per month","Packaging Details":"1 piece amplifier in a box, then 6 pcs in a carton.","Item":"Bluetooth 4 ch amplifier","Type":"Wireless Bluetooth audio amplifier","BT version":"Qualcomm BT V5.2, can do custom design","Power":"4 X 50 watts RMS 4ohm","Frequency":"Full range amplifier of 20-20K Hz","Class":"Class D digital audio amplifier","Input":"Bluetooth,coax,3.5MM,Optical,HDMI","Color":"Black, white, silver, grey","OEM":"Yes","Produce":"Professional audio amplifier factory"}}

{"cid":"91219651","title":"AV-8888BT Professional 7.1 Channel 2000W Ultra-High Power Home Theater Amplifier BT Wireless Home KTV Surround Sound System","imgUrl":"https:\/\/img.chinax.com\/nimg\/4c\/00\/9ffef81e8949ccd452724ebdf40a-200x200-1.jpg","attrs":{"Price":"$102.85","Minimum Order Quantity":"1","private mold":"No","Brand":"Creatall","Type":"Home Amplifier","Channel":"7.1","Place of Origin":"Guangdong, China","Material":"Plastic"}}