no interference wireless tour guide system

{"cid":"91171271","title":"Anti-interference Wireless Tour Guide System","imgUrl":"https:\/\/img.chinax.com\/nimg\/28\/a7\/1611af0705ffad92f09f99dec91a-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"YingMi","Model Number":"R8","Minimum Order Quantity":"1","Delivery Time":"3-7 days","Certification":"CE,RoHs","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union, MoneyGram","Supply Ability":"10000pcs one month","Packaging Details":"packed in carton box","Brand":"YingMi","Working frequency":"865MHz-880MHz","Warranty":"two years","Application":"Scenic and museum","Receiver dimensions":"69mm(L)\u00d726mm(W)\u00d712mm(H)","Working time":"\u2265 8 hours","Power":"Lithium Battery","Battery capacity":"1200mAh","Color":"Black","Customize":"OEM+ODM"}}

{"cid":"91169403","title":"GT-150 competetive cheap price guitar wireless microphone UHF instrument micr\u00f3fon","imgUrl":"https:\/\/img.chinax.com\/nimg\/b8\/b5\/613531332fd24a49422878c4f693-200x200-1.jpg","attrs":{"Brand Name":"LANSION","Model Number":"GT-150\/wireless microphone","Minimum Order Quantity":"30","Delivery Time":"30-50 days","Place of Origin":"Enping China","Certification":"CE","Packaging Details":"carton box \/ aluminum box","Payment Terms":"T\/T","Style":"instrument wireless microphone","Communication":"Wireless","Use":"guitar microphone"}}