microphone for live speech 20hz

{"cid":"91214546","title":"K Song Recording Microphone , 96KHZ 192KHZ Live Broadcast Microphone","imgUrl":"https:\/\/img.chinax.com\/nimg\/d7\/b7\/b022938bfd88df69754d266edd8e-200x200-1.jpg","attrs":{"Price":"USD16.50-18.50","Brand Name":"OEM","Model Number":"284","Minimum Order Quantity":"500","Delivery Time":"5-30days","Certification":"CE,ROHS,FCC","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"100000pcs per month","Packaging Details":"Standard color box","Product Name":"USB Condenser Microphone","Diaphragm Chamber":"2*14mm diaphragm","Sampling Rate":"48K\/96K\/192KHZ","Bit Rate":"16bit\/24bit","SNR":"\u226575dB","Sensitivity":"-40dB\u00b13dB(at 1KHz)","Maximum SPL":"120dB (\u22641%T.H.D at 1kHz)","Total Harmonic Distortion":"< 0.1%","Pickup Pattern":"OmnidiRectional, CaRdioid","Color":"Black"}}

{"cid":"91224891","title":"All-in-one Live Streaming Machine Smart Board Interactive Multitouch Electronic Digital Whiteboard Touch Screen","imgUrl":"https:\/\/img.chinax.com\/nimg\/ec\/75\/bd3f9590fcc5beb41d6af4f99e92-200x200-1.jpg","attrs":{"Price":"$5,998-84,000 \/ piece","Brand Name":"shenglong","Model Number":"SMRP-3D1302K\/VGGY","Minimum Order Quantity":"1 piece","Panel Style":"LED","warranty":"1 Year, 3 Years, 5 year","whiteboard type":"Finger Touch, Pen, Interactive Whiteboard, Standard Whiteboard, Electronic Whiteboard","Place of Origin":"Henan, China","Application":"Home, Office, Education, Conference, Advertising, Retail Store, Medical Treatment, Training, Meeting, Office Or School Teaching, Classroom & Office, Restaurant Hotel Supplies, Monitoring Command Center, Self-Service Business","aspect ratio":"16:9\/4:3\/1:1","Contrast Ratio":"250000:1","Maximum Resolution":"1920*1080 3840*2160","product dimension":"Customized","Recommended use":"PUB, Community Center, Gym, Restaurant, Home, Office, School","Target Audience":"Student, Teacher, Parent, Business Professional","Writing method":"Pen\/Finger Touch, Chalk","Certificate":"CE\/CCC\/FCC\/ROHS\/ISO9001\/PSE","Product name":"Touch Screen"}}