sip paging speaker mono acoustics

{"cid":"91223339","title":"Supported Mono 4R\/3W Speaker Motherboard With Android 11.0 \/ Ubuntu 20.04","imgUrl":"https:\/\/img.chinax.com\/nimg\/13\/2a\/78dc9714f854c97ffbd940150f57-200x200-1.jpg","attrs":{"Price":"NA","Brand Name":"YNH","Model Number":"512","Minimum Order Quantity":"100","Delivery Time":"5-8 working days","Place of Origin":"China","Certification":"CE, ISO9001","Packaging Details":"Carton box","Payment Terms":"T\/T, AliPay, PayPal","Operating System":"Android 11.0 \/ Ubuntu 20.04 ( Kernel Is Linux 4.19 )","USB interface":"10: 1 USB3.0_OTG , 9 USB2.0_HOST","DDR":"Standard 2G (4G \/8G Optional) LPDDR4\/LPDDR4x","Speaker output":"Supports Mono 4R\/3W Speakers","Warranty":"1 Year","System Upgrade":"Support USB\/ U Disk \/ Network Upgrade","Decoding resolution":"Support Up To 4K","LCD Output":"MIPI\uff0cLVDS\uff0cEDP"}}