two way interpreter wireless audio guide

{"cid":"91171271","title":"300M Distance Two Way Interpreter Wireless Audio Guide System Ear Hanging","imgUrl":"https:\/\/img.chinax.com\/nimg\/a6\/25\/63d393505ec8d456821e8db68757-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"YingMi","Model Number":"008B","Minimum Order Quantity":"1pcs","Delivery Time":"3-7 days","Certification":"CE,RoHs","Place of Origin":"China","Payment Terms":"L\/C, L\/C, T\/T, Western Union, MoneyGram","Supply Ability":"10000pcs one month","Packaging Details":"packed in carton box","Oscillation frequency":"+\/-2ppm","Distortion factor":"<1%","Brand":"YingMi","Dimensions":"86*60*19mm","Battery":"Built-in Li battery","Channel":"23","Frequency":"746-823MHz","Type":"Ear-hanging","Working voltage":"3.0-5.0VDC,recycle polymer lithium battery","Distance":"300 M"}}

{"cid":"91225221","title":"4MP Solar Security Camera Outdoor Wireless WiFi PTZ Surveillance Camera, Built\u2011in Battery, AI Human Detection, Two\u2011Way Audio, Dual Light Night Vision, IP66 Waterproof for Home Outside Monitoring","imgUrl":"https:\/\/img.chinax.com\/nimg\/23\/37\/91d878e3a99808fa9dc90fc03bcf-200x200-1.jpg","attrs":{"Price":"$24.51","Brand Name":"Wektel","Model Number":"BQ26-WP","Minimum Order Quantity":"1","Delivery Time":"7-30 days","Rechargeable Battery":"5200mAh","Waterproof Grade":"IP65 Dustproof & Waterproof","Payment Terms":"T\/T","Vertical Rotation":"90\u00b0","Detection Method":"PIR Sensor + AI Human Detection","Network":"WiFi wireless connection","Supply Ability":"10-12 days <500 units; 13-20 days <1000 units Inquiry Now","Resolution":"4MP(400W)","Fill Light":"IR LED + White Light Dual LED","Remote Operation":"APP remote PTZ rotation control","Wiring":"No wiring required for installation","PTZ Function":"Supported","IR\u2011Cut Filter":"Dual filter auto switch","Signal Transmission":"Long\u2011range transmission without obstacles","Horizontal Rotation":"355\u00b0","Alarm Notification":"Real\u2011time App alarm push","Two\u2011Way Audio":"Built\u2011in Mic & Speaker, two\u2011way talk","Installation":"Wall\u2011mount \/ Ceiling\u2011mount removable bracket","Remote Monitoring":"Mobile APP unlimited distance remote view","Certification":"CE,FCC","Power Mode":"Solar & Battery Dual Power Supply","Place of Origin":"CHINA","Working Performance":"Works continuously on rainy days","Installation Time":"1\u2011minute quick installation","Solar Panel Power":"3W","Usage Environment":"Outdoor rainstorm resistant","Packaging Details":"BOX","Night Vision":"IR \/ Full\u2011Color Night Vision Auto Switch"}}