Hi, 1. I want to design a product as a tag,which can read the temperature and transmit the data to a host,the host can read several devices' data. which mode would I use? I have read the protocal of GZll ,and the exampie of the SDK is the transmittion of one host and one deveice,I don't kown how can one host and several devices. Can you give me an example,Thank you ! 2. I have learned the user guide of the Gzp protocal which can encrypt the transmitted data. But I can't understand how the Gzp works.and how it can realize the Frequency hopping Automaticlly? can you give me an Interpretation.thank you!