na100 usb conference speaker echo cancellation

{"cid":"91222310","title":"Omnidirectional Speaker Microphone Echo Canceller Microphone SQ-M4 Conference Blue Tooth","imgUrl":"https:\/\/img.chinax.com\/nimg\/d7\/e0\/c5ca8f85e2c5df755e2ffde43147-200x200-1.jpg","attrs":{"Model Number":"SQ-M4","Minimum Order Quantity":"1 chain","Place of Origin":"China","Style":"USB Microphone, Desktop","Communication":"Wireless","Use":"Conference Microphone, Speech, communication, broadcasting","Material":"ABS","Function":"Noise Cancelling, Condenser Microphone, USB Microphone","Polar Pattern":"Omni-directional","Product name":"UHF Wireless Microphone","Type":"Electret Condenser Microphone","Keyword":"Professional Mic","Usage":"Desktop Microphone Used","Application":"Family Ktv","Feature":"Professional Conference Microphone","Color":"Black","Connection":"Usb Connecter","Name":"Singing Karaoke Microphone"}}

{"cid":"91218239","title":"Wireless Echo Cancellation Bluetooth Speaker With Microphone For Conference Calls","imgUrl":"https:\/\/img.chinax.com\/nimg\/0f\/23\/a9833e64307c46b9889458aa1e67-200x200-1.jpg","attrs":{"Price":"$20.00\/pieces 200-999 pieces","Brand Name":"NO","Model Number":"NO","Minimum Order Quantity":"200 pieces","Place of Origin":"China","Packaging Details":"1pcs\/gift boxes","Supply Ability":"50000 Piece\/Pieces per Month","Audio Crossover":"Full-Range","Battery":"NO","Built-in Microphone":"Yes","Cabinet Material":"Metal","Channels":"3 (2.1)","Color":"black","Communication":"bluetooth","Display Screen":"NO","Connectors":"TYPE-C","Feature":"Wireless Charger for Mobile Phone","LED Lighting":"No","Power Source":"DC","Remote Control":"NO","Private Mold":"Yes","Special Feature":"Mini, PORTABLE, Wireless","Voice Control":"NO","Waterproof":"NO","Speaker Type":"Wireless","Port":"shenzhen"}}

{"cid":"91221436","title":"12x Optical Zoom Video Conference Collaboration System for Video Output in Business","imgUrl":"https:\/\/img.chinax.com\/nimg\/94\/77\/8c58a7b16b9f272fb71a3ce975f5-200x200-1.jpg","attrs":{"Price":"$550.00\/sets","Brand Name":"DAIPU","Model Number":"DP-Talk5000-EX","Minimum Order Quantity":"1","Type":"Video Conference System","Function":"Voting","Simultaneous Interpretation":"NO","Place of Origin":"Guangdong, China","Product Name":"Conference System","Application":"Meeting Room","Suitable for":"Audio Video Conference Room","Keyword":"PTZ Camera","Color":"Silver","Feature":"Convenient","Video Output":"USB3.0","Zoom":"12x Optical Zoom","Resolution":"1080p60\/50","Sensor":"1\/2.8\" CMOS"}}

{"cid":"91201324","title":"VINCAN NLP88-AEC 4-Channel AEC Audio DSP Processor with USB Audio and Automatic Mixing for Conference Rooms","imgUrl":"https:\/\/img.chinax.com\/nimg\/45\/c4\/714982f5aadf8a93602905269e90-200x200-1.jpg","attrs":{"Price":"negotiate","Brand Name":"VINCAN","Model Number":"NLP88-AEC","Minimum Order Quantity":"1 pcs","Delivery Time":"2-3 work days","Packaging Details":"carton package","Additional Functions":"USB sound card, camera tracking, real-time saving and centralized control","Payment Terms":"T\/T","Series":"NLP Special Series","Audio Processing Functions":"AEC, AFC, ANS, AGC and AMM","Supply Ability":"100 pcs per week","Model":"NLP88-AEC","Certification":"FCC CE Rohs","Independent AEC Channels":"4","Processor":"ADI SHARC 21489, 450 MHz SIMD","Place of Origin":"China Mainland"}}

{"cid":"91226353","title":"M80 8-Mic Array Directional Microphone Camcorder Camera 12MP Auto Focus 1080P 60fps USB 2.0 Conference Soundbar","imgUrl":"https:\/\/img.chinax.com\/nimg\/3a\/4d\/a538cfcff72213ae5fee955e317d-200x200-1.jpg","attrs":{"Price":"USD 25-50 \/ Piece","Brand Name":"HAOKAI","Model Number":"HK-M80DC","Minimum Order Quantity":"100 Pieces","Delivery Time":"15-25 days after order confirmation","Off-angle Voice Suppression":"Greater than or equal to 12dB SPL","HUB Support":"Supports HUB connection to camera device","Pixel Size":"1.4um x 1.4um","Applications":"Video Conferencing, Large Display Terminal, HMI, Digital Human, Android Device","Pickup Distance":"Best within 3m","Aperture":"F1.8 +\/- 5%","Interface":"USB 2.0 Type-C Male, 3m Cable, 480Mb\/s","Packaging Details":"Export-grade carton packaging with anti-static protection, OEM\/ODM custom packaging available","Effective Pixels":"12MP (4000 x 3000)","Board Size":"314.1mm x 35.7mm x 26.5mm","Audio Algorithms":"AEC, Beam-forming, NS, AGC, Voice Enhancement, Directional Pickup","Place of Origin":"Shenzhen, Guangdong, China","Sensitivity":"-26 +\/- 1dB","Directivity":"Greater than or equal to 60 degrees front\/back pickup","Lens Construction":"6P + IR Filter (650IR)","Power":"USB 5V +\/- 5%, 2W Regular Work","SNR":"65dB(A)","Image Sensor":"1\/2.5\" CMOS","Certification":"CE, FCC, RoHS","Audio Capture Rate":"48kHz @ 16bit","Working Temperature":"-10 to +60 Degree C","Noise Reduction":"Greater than or equal to 20dB","Speaker Echo Reference":"Supported (external speaker echo capture)","Supply Ability":"10000 Pieces per Month","Supported OS":"Windows XP\/Vista\/7\/8\/10, Linux 2.6.24+, Ubuntu, macOS 10.6+, Android 5.1+","Field of View":"72 Degrees","Storage Temperature":"-20 to +70 Degree C","Microphone Type":"Linear Equidistant Directional Array, 8 MIC","Focal Length":"4.74mm","Audio Protocol":"USB Audio Class 1.0 (UAC1.0)","Focus Mode":"PDAF Auto Focus","Payment Terms":"T\/T,PayPal,Western Union","Max Resolution":"4000 x 3000 @ 15fps","HD Video Output":"1920 x 1080 @ 60fps","Video Format":"YUV \/ MJPG"}}