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"}}