Criminologist Joseph Giacalone explained why cell phone jammers are problematic. "They can interrupt 911 calls, they can interrupt police radios, transit radios," he said.

Cellular shields for the Arduino have been around for ages, but this is the first one we’ve seen that turns your Arduino into a proper cell phone. The shield is based around the SIM900 GSM/GP… ...

PHILADELPHIA (CBS) - What's a cell phone jammer and why don't we all have one? Professional wrestler turned Florida high school teacher Dean Liptak got into trouble with administrators and the law ...

Driver, 60, caught 'using cell phone jammer to keep motorists around him off the phone' Jason R. Humphreys facing a $48,000 fine; He hid the illegal device in his SUV and used it while driving on ...

Cell phone chatter fills the air on many of the city's buses, which can make for an. If you've ever taken a ride on public transportation in Philadelphia, you know it can get a little noisy.

A portable pocket-sized cell phone jammer is shown at the CommunicAsia 2006 exhibition in Singapore 21 June 2006. Photo by ROSLAN RAHMAN/AFP/Getty Images. Tweet Share Share Comment ...

In an effort to keep people around him from talking on their cell phones while they drove, a Florida man was using a cell phone jammer to interrupt their signals. Skip Navigation.