50mhz audio technica wireless mic system

{"cid":"91198862","title":"UHF Wireless Connect AC3 50MHz Audio Technica Wireless Mic System","imgUrl":"https:\/\/img.ismap.com\/nimg\/8d\/b3\/3446ad5dfc94a0bbbdb4a5509eb8-200x200-1.jpg","attrs":{"Price":"$210.00","Brand Name":"AC3","Model Number":"3D+F4D","Minimum Order Quantity":"2-29 Units","Delivery Time":"5-15 Working days","Place of Origin":"Guangdong, China","Payment Terms":"Western Union, T\/T","Supply Ability":"30 Units\/day","Packaging Details":"57X40X10 cm","Use":"Karaoke Microphone, Church, INTERVIEW, Speech, SINGING, Teaching, Kids","Material":"metal, Aluminium Alloy","Function":"Noise Cancelling, Light-weight, With LED lights","Color":"Black","Feature":"Anti-interference","Power supply":"DC 12-18V","Size":"48*25*4.5cm","Advantage":"new product","Connection":"UHF Wireless Connect","Single gross weight":"4.000 kg"}}

{"cid":"91171055","title":"Wireless Conference Microphone , Professional Audio Technica Conference Mic","imgUrl":"https:\/\/img.ismap.com\/nimg\/c3\/41\/6dbbe212a25f0a95972fd2b75e0a-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"Boente","Model Number":"BNT780U","Minimum Order Quantity":"50units","Delivery Time":"10-15 days","Certification":"CE\/ROHS\/FCC","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union","Supply Ability":"1000 units per month","Packaging Details":"carton","Product Name":"wireless microphone","Color":"Black","Style":"2 Channels wireless microphone","Working frequency":"640-690MHz","Modulation":"Broadband FM","Number of channels":"100","Channel interval":"250kHz","Frequency stability":"\u00b1 0.005%","Dynamic range":"100dB","Maximum offset":"\u00b1 45kHz","Working distance":"60m"}}