This Jammer is mainly for blocking GSM,CDMA,DCS Signals, the effective range for Blocking 3G signal is about 0.5 to 1 Meter. If you are trying to block 3G signals in an effective way, pls do not choose this one, this one is not powerful enough to block 3G signals.
|Device Blocked:||Cell Phone|
|Blocked Area:||1 to 10 Meters Depending on signal strength and working environment|
|Power supply:||100v to 240v|
|Typical Battery Life:||2Hours|
|Battery:||Built in Rechargeable Li-ion battery|
|Dimension:||Antennas off - 97 x 47 x 18 mm (L x W x D)|