4k usb webcam for online training

{"cid":"91225131","title":"USB Webcam for Online Training with 4K Video PDAF Autofocus Camera","imgUrl":"https:\/\/img.chinax.com\/nimg\/ac\/ea\/fd9926df6abc4c46ed7b62a6ebe6-200x200-1.jpg","attrs":{"Price":"USD 11.53~11.62 \/ pieces","Brand Name":"XinZengCai","Model Number":"921Max","Minimum Order Quantity":"2000 pieces","Delivery Time":"30-45 working days","Product Type":"4K USB Webcam","Focus Technology":"PDAF Autofocus","Recommended Applications":"Online Training, Webinars, Virtual Classroom, Remote Education, Live Presentation","Payment Terms":"L\/C,T\/T","Lens Aperture":"F2.0","Certification":"CE,RoHS,FCC","Video Resolution":"3840 \u00d7 2160","Model":"921MAX","Viewing Angle":"83\u00b0","Supply Ability":"100000piece\/Month","Video Format":"MJPEG \/ YUY2","Place of Origin":"China","Frame Rate":"4K@30fps \/ 1080P@60fps","Packaging Details":"Neutral\/Customized Color Box","Compatible Systems":"Win 7\/8\/10\/11, macOS, Linux, Android, Ubuntu"}}

{"cid":"91199486","title":"4K AI USB Conference Webcam with AI Auto Framing for Video Conferencing","imgUrl":"https:\/\/img.chinax.com\/nimg\/cb\/46\/0c808f7388c84e81b0666f6656a5-200x200-1.jpg","attrs":{"Price":"USD59-79","Brand Name":"iBoard or OEM","Model Number":"IBD-4C","Minimum Order Quantity":"10 pcs","Delivery Time":"5-30 days","Certification":"CE, RoHS","Place of Origin":"Shenzhen, CHINA","Payment Terms":"T\/T","Supply Ability":"10000 units per month","Packaging Details":"Carton Package","Material":"Plastic","Color":"Black, White","Resolution":"3840*2160\/30fps","Warranty":"1 Year","Operating system":"Win ,Android...","Application":"Meeting ,Office, Training...","Product name":"4K All in one Ai USB camera","Voice tracing":"Yes, support AI voice tracing","Framing":"Auto-framing","Zoom":"4 times digital zoom","Operating temperature":"0~40\u00b0C","Relative humidity":"5~95%, noncondensing"}}