The shielding diameter of cell phone jammer is 20-120m

The purchase of licensed mobile phones, the box is a very important part. Parallel as with many JS users licensed to sell, but often three packs in the box and exposed his true certificate. Generally speaking, the box will be affixed with a label on the product type, date, place of origin, IM EI code and bar code labels, regardless of the line are parallel, there will be. Of course, the parallel is false profiteers. Line of label printing is fine, legible, and very rough forged label printing, font is very vague. Is the line of packaging boxes and other accessories in addition to manual, the cell phone will have three bags of evidence that this is for the protection of consumer interests and policies, parallel cell phoneis not. cell phone jammer can effectively block various cell cell phone signals and there will be no missed point.
Buy mobile phone, can generally be identified by the following method is the "new" machine: see attached screen, whether there is a lot of bubbles, the new machine's screen is very neat paste; depends on the battery contacts, whether there are more plans marks; machines, batteries, accessories, and other packaging, is being opened; check the cell phonelist in the game, to see whether the zero points; check cell phone book, SMS, etc., to see whether the air; check whether the dead pixel screen, usually by displaying black and white picture to check (by the way, do not display a hand to squeeze out once the LCD, dead pixels also appeared); if the cell phone supports memory expansion, you need to contact the card check whether have more scratches. Here is the inspection items and technical requirements of cell phone blocker.
If you buy NOKIA mobile phone, you can also enter in standby mode * # 92702689 # (for S40), the cell phone shows a lot of items, one of which is the life timer, this value can be judged by the use of mobile phones The cell phone number will be used as the time that the call time and change, so bought back when the cell phone this number will be very small or even zero. If you are purchasing SIEMENS mobile phone, the new machines generally have an initial configuration, if not the process, must have been used by others. Finally, add that, where the so-called "new" machine probably is not really a new machine. The person with the pacemaker implant is not allowed to use cell phone jammer.
Because there will always be broken down for maintenance after the motherboard and other components, but most of these things should make the best use of, after the renovation will play their effectiveness. Even the store, get your hands can not guarantee the machine is completely new machine. So, when the purchase of the need to balance mind, to the reputable stores to buy mobile phones generally do not have a problem, enjoy the three bags of natural to OK it. Licensed a number of quality and performance to be stable. NOKIA and Samsung because of the different, not so many parallel channels. So many sites are actually selling machine Hong Kong Bank and the European version of the water change, which "change Europe," the stability of the machine is not so satisfactory. The shielding diameter of cell phone jammer is 20-120m.
NOKIA many parts are common, renovation will be more convenient, the article compared to the Samsung in terms of a much larger, it is usually "European reform" is the problem again and again. So do not yield to the temptation to buy cheap no formal invoice, there is no guarantee of the machine together, and perhaps the day will soon come to regret. After all, mobile phones will go wrong, as if life were not the same without sick. It would appear, of course willing to buy mainland licensed, or there is a regular invoice line in Hong Kong. Recommend the Hong Kong Bank, one is cheap, there is that you can with the regular invoice line in mainland China to Hong Kong warranty. Actually, a lot of selling line of business in Hong Kong, where he still ask you to repair, Well, a lot of things are self-evident, to see their own judgments slightly. cell phone jammercan ensure the security of confidential information of the meeting.