How to identify the cell phone signal jammers their quality?

Cell Phone jammers have been 10 years of development in China , especially in the examination room and meeting room is becoming increasingly popular . Facing the market long complicated cell phone signal jammers manufacturers, and even some manufacturers have introduced so-called special machine , the price is far below the market price sales. As consumers, we should be how to identify and select high-quality cell phone signal jammers it?

Ultra- low-cost mobile phone signal jammers , a conspiracy or a trap ?

As the saying goes , no good goods cheaper , better goods are not cheap. The decision was not empty words !

Some manufacturers play the so-called super cheap jammers, or even below cost sales. Why does this happen , do not they just for loss leader ? Far from it ! Hidden inside some unknown insider .
Poor quality cell phone signal jammers manufacturer usual trick :

1, the use disassemble , used electronic devices.
Phone signal jammers increasingly competitive , in order to significantly reduce costs , some unscrupulous traders to buy cheap second-hand disassemble the device , used in the new cell phone signal jammers , it will greatly shorten the life of the equipment , as well as the results.

2, the use of poor quality power supply.
Poor power supply is extremely easy to burn , there is a serious risk of fire .

3, no service.
When you buy a device to tell you the hype, but a bill to hand . Recognize how you say that regardless of the sale, maintenance more difficult.


4 , false or true 3G 3G, one concept .
At present, China Unicom and China Mobile , including China Telecom have launched their own 3G band . Some manufacturers of cell phone signal jammers can shield one band , you can shield known as 3G. To consumers is extremely irresponsible .