non interference bluetooth tour guide system

{"cid":"91171271","title":"E8 Ear - Hanging Bluetooth Tour Guide System Black Travel Audio Guide","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/14\/31\/170b2ce7db297b1c6188e09efc07-200x200-1.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"}}