Watch SMS machine and electronic eraser can know the speed of friends through electronic dog detection! ! Let me know. thank you

Shielding, watches use broadband communication principle:

For example, the difference between ADSL and ordinary telephone dialing is that it is shielded (shielded scanning) by the speed of 5-7K, which doesn't matter to ADSL, but for ordinary telephone dialing (such as

Walkie-talkie equipment), which will cause the signal to be completely shielded. Another example is the small water pipe. Brick-sized things can be blocked, but brick-sized things can't block large water pipes. If it is shielded,

The distance is reduced by 30%

Anti-cheating grams, because the watch does not receive amplified electromagnetic signals, it will not be detected by cheating grams at all.

Anti-metal detection, there is no effective real anti-metal detection equipment at all, and the watch short message receiver adopts camouflage principle.

2. You can see all the characters that can be entered in digital, English and TXT documents, and some mathematical symbols have been added in the new table.

3. The most important thing is to have a key lock. 105 Once the earphone and receiver are found, they will be * * *. After pressing the lock key, the watch stops completely on the time screen, and you can't afford to press any other keys.

Function, 10 minutes does not unlock, the information will be automatically deleted.

4. The advantage of watch-type SMS receiver is that it won't be * * because you can't hear clearly once.

Disadvantages:

1. You need a computer, and the transmitter and transponder need power, unlike the walkie-talkie.

2. It takes a lot of effort to choose a suitable launching point. It is best to see the position of the person using the instrument from the perspective of the transmitter, and the fewer obstacles between them, the better (high-point emission effect)

Good), like set 105, it is very important to choose the appropriate launch point carefully.

3. Compared with 105, there are more watches, but watches also have key locks, so there is no worries, hehe, different people have different opinions.