gpsk modulation audio tour guide equipment

{"cid":"91171271","title":"E8 Ear - Hanging Bluetooth Tour Guide System , Audio Tour Guide Equipment","imgUrl":"https:\/\/img.chinax.com\/nimg\/c4\/12\/a322c0b5738112cc542af22243c5-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"humantek","Model Number":"E8","Minimum Order Quantity":"1pcs","Delivery Time":"7days","Certification":"CE,RoHS","Place of Origin":"China","Payment Terms":"L\/C,Paypal","Supply Ability":"1000 pieces per week","Packaging Details":"packed in carton box","Product":"Tour guide device","Componet":"Transmitter&Receiver","Color":"Black","Power":"Lithium Battery","Feature":"Ear-hanging Reciever","Application":"Tourist Reception"}}

{"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"}}