Electronic signals are a fact on dry land. I've been venturing in the woods for over 50 years. Being able to scramble my electronic signal has worked for me. Never once have I ever been spotted, detected, or photographed successfully by a Sasquatch in all my time in the wild. Even with today's sophisticated technology I have been able to elude the ever pressing Bigfoot from getting a clear photo or video of me. With the ability to disrupt your electronic signals you can blur the focus on any camera lens, thermal image sensor, or night vision optic. I'd say it's 100% legit.