The manuals help you know better the Radio Functions . And learn more Radio Operations and Matters Need Attention. You could get the detailed Product Parameters as well .
HD1 English InstructionDownload Now
HD1 Russian ManualClick to view
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It makes you get full control of your radio. You could self-define the channel information, sub-audio settings, shortcuts, and any else settings on your radio. It is a powerful assistant in the process of using the walkie-talkie.