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Portable noise generator - used to secure conversations against eavesdropping or covert recording with an effective range of 2-6M. Thanks to the remote control, you can covertly...

The desktop noise generator with 2-8 M coverage and 4 power levels is one of the most powerful portable noise generators and is used to secure conversations against...

This digital voice recorder is capable of recording continuously for up to 20 hours. You can choose to activate by sound or start manually. It can be used as a normal flash...