Wifi and Bluetooth are currently the most widely used wireless transmission protocols. For different places, we have different ideas about their use. Wifi is used more on the Internet, while Bluetooth is used for local area networks. For our face-to-face file transfer, Bluetooth is a faster wireless transfer than wifi. Wi-Fi is a technology that wirelessly connects personal computers, handheld devices (such as PDAs, mobile phones) and other terminals. Wi-fi is a wireless Internet communication technology brand owned by the Wi-Fi Alliance. The purpose is to improve the interoperability between wireless Internet products based on the IEEE 802.11 standard. Wi-fi and IEEE 802.11 are often confused. Even wi-fi is synonymous with wi-fi. Bluetooth is a wireless technology that supports short-range communication (within 10 MB) and is a standard for wireless communication networks. They all work on the ISM2.4GHz public frequency band, and both use the 2.4GHz frequency band, so 2.4GHz wifi jammer will interfere with their wireless transmission.
Now we know that Apple mobile phones with Android system have positioning function (GPS). In order to provide a personalized experience, the system will automatically turn on when we take a photo, and take a photo when we store the location information written in the photo together. This is why we can see that there are photos in the album that will automatically display the shooting location. Although it is convenient for us to record photos, it also allows us to disclose our privacy. One of them is WeChat. In the system settings option, find the privacy option, enter camera in it, and then select Never. This will turn off the camera and use location. It can also save power and significantly increase battery life. In the end, this is just a way to achieve, but it will always break,