noise filtering automatic tour guide system

{"cid":"91171271","title":"Adaptive Flash Automatic Tour Guide System With Noise Filtering Technology","imgUrl":"https:\/\/img.chinax.com\/nimg\/ed\/ff\/993cad92da8f29eac1cc48b126da-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"YingMi","Model Number":"I7","Minimum Order Quantity":"1pcs","Delivery Time":"3-7 days","Certification":"CE,RoHs","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union, ","Supply Ability":"1000 pieces per week","Packaging Details":"packed in carton box","Weight":"20g","Audio mode":"MP3","Power supply":"Lithium battery","Languages":"8 language for optional","Warranty":"2 years","Working current":"12mA-22mA","Storage mode":"Adaptive Flash","Place of origin":"China","Code rate":"44.1k,128kbps","Technology":"RFID"}}

{"cid":"91201226","title":"BDA450 Bluetooth Dynamic Attitude Sensor with 3D Motion Measurement for Robots and Mobile Machinery","imgUrl":"https:\/\/img.chinax.com\/nimg\/88\/8e\/c366ea68f0f60ba2860063afec0b-200x200-1.jpg","attrs":{"Price":"$89.00\/Pieces","Brand Name":"RION","Model Number":"BDA450","Minimum Order Quantity":"1","Delivery Time":"2-6 weeks","Response time":"0.01S","wireless transmission":"Bluetooth 5.1","Roll&Pitch Dynamic accuracy(rms)":"\u00b10.1\u00b0","Place of Origin":"China","Measure axis":"X axis \/ Y axis \/ Z axis","Payment Terms":"T\/T","Supply Ability":"3000pcs per month","Packaging Details":"packing carton","Certification":"CE, ISO,ROHS","Power-on startup time":"\u22643.5S","Bluetooth transmission distance":"50m (in an open and unobstructed state)"}}