Findster Duo+ uses a proprietary protocol called MAZE, in the sub 1 GHz ISM band (868MHz EU; 915MHz USA), fully compliant with the FCC and CE directives.
While other GPS pet trackers require cell coverage in order to communicate with your smartphone, Findster Duo+ doesn't - its MAZE technology eliminates this need, making it 100% free of monthly fees. Since it doesn't depend on Telcos, Findster Duo+ also works everywhere in the world!
For more information on how this is possible, please check the article on how Findster Duo+ works.
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