gpsk modulation tour guide system

{"cid":"91171271","title":"GPSK Modulation Tour Guide Transmitter With Good Signal Penetration","imgUrl":"https:\/\/img.chinax.com\/nimg\/c3\/e3\/dac9ba13d55d993d7f3b370c8c83-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"YingMi","Model Number":"E8","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","Color":"Black","Battery capacity":"250MAH","Dimensions":"105\u00d770\u00d720mm","Working current":"45mA","Frequency":"860MHz-870MHz","Power supply":"Lithium Battery","Modulation mode":"Four levels of circulation","Frequency response":"20-22K","Receiver weight":"18g","Warranty":"2 years"}}

{"cid":"91224472","title":"Guide Visual Concert Stage P3.91 Indoor Rental LED Display for Tours, Quick Lock Dual Backup","imgUrl":"https:\/\/img.chinax.com\/nimg\/91\/52\/3450e186edbb4ff0fc87f79189a4-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"Guide Visual","Model Number":"G10","Minimum Order Quantity":"1","Delivery Time":"15days","Certification":"CCC CE FCC","Place of Origin":"China","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram","Supply Ability":"3000 per square meters","Packaging Details":"Flight case","Screen resolution":"65536dot\/\u33a1","Led type":"SMD 2020","Colour grayscale":"32bit","Refresh rate":"3840Hz","Driving type":"1\/16 Scan","Product name":"P3.91 indoor display","Brightness":"900cd\/sqm","AC input voltage":"AC 110-240V","Cabinet size":"500*500mm,500*1000mm"}}