neck hung tour guide audio system

{"cid":"91171271","title":"Neck Hung Audio Guide System Dual Channel 158 Channels","imgUrl":"https:\/\/img.chinax.com\/nimg\/c1\/0b\/473a5f4ee6c174c98cc849b223d5-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"YingMi","Model Number":"008A","Minimum Order Quantity":"1pcs","Delivery Time":"3-7 days","Certification":"CE,RoHs","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union, MoneyGram","Supply Ability":"10000pcs for one month","Packaging Details":"packed in carton box","Brand":"YingMi","Channel quantity":"158","Mirror harmonic":">75dB","Frequency response":"20Hz-18KHz","Channel spacing":"120KHz,200KHz,350KHz etc","Dimensions":"65*50*17mm","Working temperature":"-20\u2103\u2014+70\u2103","Warranty":"2 years","Working current":"\u226430~80mA"}}