Android security problems have been criticized by people, and now the android new application cloning loophole, this is very bad news for android mobile phone users, it also from the side reflects the importance for the safety of cellular phones cell phone jammer.

http://www.jammer-buy.com/cell-phone-jammer/c-24.html

We know what a signal jammer, but we may not know what cell phone etiquette is... In addition, do we have some questions about etiquette in the telephone conversation? Many people don't have any cell phone etiquette is a common problem - out of control. Mobile phone users should be responsible for this, not mobile phones, and must follow some necessary rules, otherwise it will become more common in the near future and become an important auxiliary tool for mobile phone interference.

http://www.jammer-buy.com/jammer-blocker-devices/c-1.html