Today, smartphones are very popular to our everyone. Smart phone is like a PC, is independent of the operating system, independent of the operating space can by the user to install their own software, games, navigation and other third-party service providers to provide the program, and can be achieved through the mobile communication network is the floorboard of the wireless network access phone type. So smartphones bring us more and more inconvenience.

But smartphones have brought us more inconvenience at the another side, a lot of people are suffering from the negative effects of the mobile phones,so the mobile phone jammers can help people a lot in this case. It seems to have many reasons for us to take a portable smartphone jammer legally and understandably,not for harming others. Even sometimes you may think that hour without the cell signal was the best hour of your day.

You would like to take a smartphone jammer if you were suffering the situations.Backlash has occurred since the ubiquitous use of smartphones.Cultural cultivation of users is so different,that is why while some people practice good cell phone etiquette ,many others noisily discuss their private,professional or mundane business in public areas,forcing everyone nearby to listen.Such as,on trains ,subways,buses,in grocery stores,shopping malls and cafes,you may see people are aggravating fellow citizens with their non-stop chit-chat in anywhere there are phone users.All of these caused some people to take maters into their own hand held portable smarphone jammer.Simply operate inside purse or pocket,smartphone can be turned off with the flip of a switch,never be able to reconnect as long as the jammer is activated.So the noisy guys have to move far enough away from the source. 

In here, let us review a very helpful smartphones signal jammer, the title is "Selectable Portable 3G 4G Cell Phone Jammer - Wifi GSM GPS Lojack Anti Jammer ", This is a selectable 8 bands GSM 2G 3G 4G WIFI GPS Lojack jamming device with the action target including the 4G LTE 725-770MHz, 4G LTE 1700, 4G LTE 800, 4G LTE 2600, WIFI 2.4G GPS Lojack, the GSM of 850-960MHz, DCS&PCS of 1805-1990MHz, and 3G of 2110-2170MHz, etc. As a selectable mobile phone blocker, you can choose one single frequency band and it will not cause any interference on the other working frequency bands at the same time. In addition, as a portable worldwide phone signal jamming device, owning this jammer means that you can apply it freely anywhere in the world without barriers, namely, when you own this one, it’s not necessary for you to purchase another one for another country any more. It’s really versatile.

Of course, if you want to get more information for other types of signal jammer devices, just come to, and pick up your favorite ones !