Recently, CCTV News reported a piece of news about mobile phone signal "enhancement patches". It is said that one patch can enhance the signal. During this period, mobile phone signal "enhancement patches" were a hot commodity, setting off a wave of purchases.

In fact, a patch that can enhance mobile phone signals in "all scenarios" is just a metal card. The price ranges from a few yuan to dozens of yuan. Some merchants also claim that they can wait for signals in the basement or in the elevator. In weak places, one patch can amplify the mobile phone signal and instantly make the mobile phone signal full, and it is suitable for the three major operators. Some merchants said that the mobile phone enhancement patch can also improve the performance of the mobile phone, reduce the radiation level, and extend the battery life, and can also provide relevant "proof".

It freezes when playing games, pauses when watching videos, and even calls cannot be received in areas with weak signal. The problem of mobile phone signal really worries many people. Now, is the sudden appearance of signal enhancement stickers a black technology or an "IQ tax"?

Relevant people specifically investigated this, purchased three mobile phone signal enhancement patches at different prices for testing, and also specially installed a test white card to reduce interference from the operator's signal. It simulated the installation process and the scene of making and receiving phone calls. However, the results showed that the mobile phone enhancement patch had no effect at all on improving the signal.

According to experts, the signal base stations set up by major operators are the main reason that affects mobile phone signals. Secondly, the density of people and mobile phone antennas will also affect mobile phone signals. Theoretically, the longer the mobile phone antenna, the longer the wavelength of the signal received. The so-called mobile phone signal "enhancement patch" is a plastic sheet coated with an aluminum film, and a layer of similar magnetic ink is printed on the aluminum film. Made of materials, it is neither powered by electricity nor connected to the built-in antenna of the mobile phone. It is impossible to increase the signal through the air.

We can think about it, if an enhancement sticker can enhance the signal, then why don’t telecom operators launch it themselves? If the signal is poor somewhere, just send a signal sticker. In fact, whether it is the current mobile phone signal "enhancement patch", Internet celebrity "sugar-free rice cooker", or the anti-blue light glasses that can prevent myopia, "graphene" thermal underwear that can "repair sagging skin", etc., They are all using the name of "black technology" to deceive consumers for personal gain.

Therefore, no matter the price is high or low, our consumers still need to keep their eyes open and make a reasonable judgment before purchasing. When encountering such behaviors that deceive consumers in the name of "technology", you can also use the law to protect your rights and interests and obtain appropriate compensation.