What can you tell me about those StickNFind Bluetooth stickers?

Hi! I like those stickers, but I’m not sure if they work exactly how developers showed. Also what about its working range? And if there is anything I should know before buying those? Many thanks in advance!

n Syria in particular, there has been increasing evidence that the US military is largely concerned about the potential for GPS interference or other disruptions to the navigation network. The war zone was the first to report that at least one weekly summary of US Air Force intelligence in 2016, which we obtained in heavily redacted form via the Freedom of Information Act, included an entire section devoted to the question.

Drone Gun also has a GPS jammer system to disrupt communications between the drone and its operator. The range of Drone Dome reaches several miles, but causes minimal interruptions to other systems in nearby urban areas.

As it comes from the name the sticker uses Bluetooth to communicate with your smartphone. You should pay attention to the fact that Bluetooth can be blocked by physical obstacles. That’s the main reason why those stickers have strictly limited working range and as developers have stated it is up to 100 feet. The next thing you should know is that your mobile phone relies on the sticker’s signal strength to calculate approximate distance to it. But the direction to a sticker can not be calculated, because to make it possible your smartphone should have a semi-directional Bluetooth antenna and there are no devices equipped with it. So looking for a sticker becomes a hot/cold game, you will have to look for the best reception, because the better the reception is – the closer the sticker.