two way interpreter wireless audio guide

{"cid":"91171271","title":"300M Distance Two Way Interpreter Wireless Audio Guide System Ear Hanging","imgUrl":"https:\/\/img.ismap.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"}}