Mini Portable Cell Phone Jammer - Shielding Radius Range 10 MetersJH_JAM_012
I didn't have any high expectations, but it actually works.
Blocked the signal of iPhone 4, iPhone 3G, SonyEricsson C702 and even WiFi on computer lost it's signal!
Effective range varies much, have not tried it outside yet, but inside it works well when close range.
Date Added: January 26, 2014 Karnå